diff --git a/Changes b/Changes
index 7efa6e3e5943..b099100f4f4c 100644
--- a/Changes
+++ b/Changes
@@ -410,6 +410,9 @@ Working version
   use [Backend_var.With_provenance] for variables in binding position.
   (Mark Shinwell, review by Pierre Chambart)
 
+- GPR#2074: Correct naming of record field inside [Ialloc] terms.
+  (Mark Shinwell, review by Jérémie Dimino)
+
 - GPR#2076: Add [Targetint.print].
   (Mark Shinwell)
 
diff --git a/asmcomp/amd64/emit.mlp b/asmcomp/amd64/emit.mlp
index 35df30049c49..52f7d3fdeaa5 100644
--- a/asmcomp/amd64/emit.mlp
+++ b/asmcomp/amd64/emit.mlp
@@ -642,7 +642,7 @@ let emit_instr fallthrough i =
       | Double | Double_u ->
           I.movsd (arg i 0) (addressing addr REAL8 i 1)
       end
-  | Lop(Ialloc { words = n; label_after_call_gc; spacetime_index; }) ->
+  | Lop(Ialloc { bytes = n; label_after_call_gc; spacetime_index; }) ->
       if !fastcode_flag then begin
         let lbl_redo = new_label() in
         def_label lbl_redo;
diff --git a/asmcomp/arm/emit.mlp b/asmcomp/arm/emit.mlp
index 510e95c4dd44..a523fbb9f6b6 100644
--- a/asmcomp/arm/emit.mlp
+++ b/asmcomp/arm/emit.mlp
@@ -600,7 +600,7 @@ let emit_instr i =
           | Double_u -> "fstd"
           | _ (* 32-bit quantities *) -> "str" in
         `	{emit_string instr}	{emit_reg r}, {emit_addressing addr i.arg 1}\n`; 1
-    | Lop(Ialloc { words = n; label_after_call_gc; }) ->
+    | Lop(Ialloc { bytes = n; label_after_call_gc; }) ->
         let lbl_frame =
           record_frame_label i.live false i.dbg ?label:label_after_call_gc
         in
diff --git a/asmcomp/arm64/arch.ml b/asmcomp/arm64/arch.ml
index 01362a5e63e3..ce5902aa2967 100644
--- a/asmcomp/arm64/arch.ml
+++ b/asmcomp/arm64/arch.ml
@@ -38,7 +38,7 @@ type cmm_label = int
   (* Do not introduce a dependency to Cmm *)
 
 type specific_operation =
-  | Ifar_alloc of { words : int; label_after_call_gc : cmm_label option; }
+  | Ifar_alloc of { bytes : int; label_after_call_gc : cmm_label option; }
   | Ifar_intop_checkbound of { label_after_error : cmm_label option; }
   | Ifar_intop_imm_checkbound of
       { bound : int; label_after_error : cmm_label option; }
@@ -107,8 +107,8 @@ let print_addressing printreg addr ppf arg =
 
 let print_specific_operation printreg op ppf arg =
   match op with
-  | Ifar_alloc { words; label_after_call_gc = _; } ->
-    fprintf ppf "(far) alloc %i" words
+  | Ifar_alloc { bytes; label_after_call_gc = _; } ->
+    fprintf ppf "(far) alloc %i" bytes
   | Ifar_intop_checkbound _ ->
     fprintf ppf "%a (far) check > %a" printreg arg.(0) printreg arg.(1)
   | Ifar_intop_imm_checkbound { bound; _ } ->
diff --git a/asmcomp/arm64/emit.mlp b/asmcomp/arm64/emit.mlp
index 271ca38d7207..8c855b8de81e 100644
--- a/asmcomp/arm64/emit.mlp
+++ b/asmcomp/arm64/emit.mlp
@@ -445,15 +445,15 @@ module BR = Branch_relaxation.Make (struct
     | Lop (Iload (size, addr)) | Lop (Istore (size, addr, _)) ->
       let based = match addr with Iindexed _ -> 0 | Ibased _ -> 1 in
       based + begin match size with Single -> 2 | _ -> 1 end
-    | Lop (Ialloc {words = num_words}) when !fastcode_flag ->
-      if num_words <= 0xFFF then 4 else 5
-    | Lop (Ispecific (Ifar_alloc {words = num_words})) when !fastcode_flag ->
-      if num_words <= 0xFFF then 5 else 6
-    | Lop (Ialloc { words = num_words; _ })
-    | Lop (Ispecific (Ifar_alloc { words = num_words; _ })) ->
-      begin match num_words with
+    | Lop (Ialloc {bytes = num_bytes}) when !fastcode_flag ->
+      if num_bytes <= 0xFFF then 4 else 5
+    | Lop (Ispecific (Ifar_alloc {bytes = num_bytes})) when !fastcode_flag ->
+      if num_bytes <= 0xFFF then 5 else 6
+    | Lop (Ialloc { bytes = num_bytes; _ })
+    | Lop (Ispecific (Ifar_alloc { bytes = num_bytes; _ })) ->
+      begin match num_bytes with
       | 16 | 24 | 32 -> 1
-      | _ -> 1 + num_instructions_for_intconst (Nativeint.of_int num_words)
+      | _ -> 1 + num_instructions_for_intconst (Nativeint.of_int num_bytes)
       end
     | Lop (Iintop (Icomp _)) -> 2
     | Lop (Iintop_imm (Icomp _, _)) -> 2
@@ -503,8 +503,8 @@ module BR = Branch_relaxation.Make (struct
       | Cmm.Raise_notrace -> 4
       end
 
-  let relax_allocation ~num_words ~label_after_call_gc =
-    Lop (Ispecific (Ifar_alloc { words = num_words; label_after_call_gc; }))
+  let relax_allocation ~num_bytes ~label_after_call_gc =
+    Lop (Ispecific (Ifar_alloc { bytes = num_bytes; label_after_call_gc; }))
 
   let relax_intop_checkbound ~label_after_error =
     Lop (Ispecific (Ifar_intop_checkbound { label_after_error; }))
@@ -688,9 +688,9 @@ let emit_instr i =
         | Word_int | Word_val | Double | Double_u ->
             `	str	{emit_reg src}, {emit_addressing addr base}\n`
         end
-    | Lop(Ialloc { words = n; label_after_call_gc; }) ->
+    | Lop(Ialloc { bytes = n; label_after_call_gc; }) ->
         assembly_code_for_allocation i ~n ~far:false ?label_after_call_gc
-    | Lop(Ispecific (Ifar_alloc { words = n; label_after_call_gc; })) ->
+    | Lop(Ispecific (Ifar_alloc { bytes = n; label_after_call_gc; })) ->
         assembly_code_for_allocation i ~n ~far:true ?label_after_call_gc
     | Lop(Iintop(Icomp cmp)) ->
         `	cmp	{emit_reg i.arg.(0)}, {emit_reg i.arg.(1)}\n`;
diff --git a/asmcomp/branch_relaxation.ml b/asmcomp/branch_relaxation.ml
index 6486d19cbcba..f8f907197094 100644
--- a/asmcomp/branch_relaxation.ml
+++ b/asmcomp/branch_relaxation.ml
@@ -86,8 +86,8 @@ module Make (T : Branch_relaxation_intf.S) = struct
           fixup did_fix (pc + T.instr_size instr.desc) instr.next
         else
           match instr.desc with
-          | Lop (Ialloc { words = num_words; label_after_call_gc; }) ->
-            instr.desc <- T.relax_allocation ~num_words ~label_after_call_gc;
+          | Lop (Ialloc { bytes = num_bytes; label_after_call_gc; }) ->
+            instr.desc <- T.relax_allocation ~num_bytes ~label_after_call_gc;
             fixup true (pc + T.instr_size instr.desc) instr.next
           | Lop (Iintop (Icheckbound { label_after_error; })) ->
             instr.desc <- T.relax_intop_checkbound ~label_after_error;
diff --git a/asmcomp/branch_relaxation_intf.ml b/asmcomp/branch_relaxation_intf.ml
index 3b1fbac5db08..f95ab67dc85e 100644
--- a/asmcomp/branch_relaxation_intf.ml
+++ b/asmcomp/branch_relaxation_intf.ml
@@ -61,7 +61,7 @@ module type S = sig
      relaxed generically.  It is assumed that these rewrites do not change
      the size of out-of-line code (cf. branch_relaxation.mli). *)
   val relax_allocation
-     : num_words:int
+     : num_bytes:int
     -> label_after_call_gc:Cmm.label option
     -> Linearize.instruction_desc
   val relax_intop_checkbound
diff --git a/asmcomp/comballoc.ml b/asmcomp/comballoc.ml
index b4e1b1efda14..ff8db1a30516 100644
--- a/asmcomp/comballoc.ml
+++ b/asmcomp/comballoc.ml
@@ -32,12 +32,12 @@ let rec combine i allocstate =
   match i.desc with
     Iend | Ireturn | Iexit _ | Iraise _ ->
       (i, allocated_size allocstate)
-  | Iop(Ialloc { words = sz; _ }) ->
+  | Iop(Ialloc { bytes = sz; _ }) ->
       begin match allocstate with
         No_alloc ->
           let (newnext, newsz) =
             combine i.next (Pending_alloc(i.res.(0), sz)) in
-          (instr_cons_debug (Iop(Ialloc {words = newsz; spacetime_index = 0;
+          (instr_cons_debug (Iop(Ialloc {bytes = newsz; spacetime_index = 0;
               label_after_call_gc = None; }))
             i.arg i.res i.dbg newnext, 0)
       | Pending_alloc(reg, ofs) ->
@@ -49,7 +49,7 @@ let rec combine i allocstate =
           end else begin
             let (newnext, newsz) =
               combine i.next (Pending_alloc(i.res.(0), sz)) in
-            (instr_cons_debug (Iop(Ialloc { words = newsz; spacetime_index = 0;
+            (instr_cons_debug (Iop(Ialloc { bytes = newsz; spacetime_index = 0;
                 label_after_call_gc = None; }))
               i.arg i.res i.dbg newnext, ofs)
           end
diff --git a/asmcomp/i386/emit.mlp b/asmcomp/i386/emit.mlp
index 73c98811e241..654b5629a0b8 100644
--- a/asmcomp/i386/emit.mlp
+++ b/asmcomp/i386/emit.mlp
@@ -630,7 +630,7 @@ let emit_instr fallthrough i =
             I.fstp (addressing addr REAL8 i 1)
           end
       end
-  | Lop(Ialloc { words = n; label_after_call_gc; }) ->
+  | Lop(Ialloc { bytes = n; label_after_call_gc; }) ->
       if !fastcode_flag then begin
         let lbl_redo = new_label() in
         def_label lbl_redo;
diff --git a/asmcomp/mach.ml b/asmcomp/mach.ml
index a03481fcda10..17a5ba7e832d 100644
--- a/asmcomp/mach.ml
+++ b/asmcomp/mach.ml
@@ -54,7 +54,7 @@ type operation =
   | Istackoffset of int
   | Iload of Cmm.memory_chunk * Arch.addressing_mode
   | Istore of Cmm.memory_chunk * Arch.addressing_mode * bool
-  | Ialloc of { words : int; label_after_call_gc : label option;
+  | Ialloc of { bytes : int; label_after_call_gc : label option;
         spacetime_index : int; }
   | Iintop of integer_operation
   | Iintop_imm of integer_operation * int
diff --git a/asmcomp/mach.mli b/asmcomp/mach.mli
index 8ec960a91127..f32d8604a208 100644
--- a/asmcomp/mach.mli
+++ b/asmcomp/mach.mli
@@ -62,7 +62,7 @@ type operation =
   | Iload of Cmm.memory_chunk * Arch.addressing_mode
   | Istore of Cmm.memory_chunk * Arch.addressing_mode * bool
                                  (* false = initialization, true = assignment *)
-  | Ialloc of { words : int; label_after_call_gc : label option;
+  | Ialloc of { bytes : int; label_after_call_gc : label option;
       spacetime_index : int; }
     (** For Spacetime only, Ialloc instructions take one argument, being the
         pointer to the trie node for the current function. *)
diff --git a/asmcomp/power/arch.ml b/asmcomp/power/arch.ml
index 289f33ca3680..70cd75ddb9a0 100644
--- a/asmcomp/power/arch.ml
+++ b/asmcomp/power/arch.ml
@@ -47,7 +47,7 @@ type specific_operation =
     Imultaddf                           (* multiply and add *)
   | Imultsubf                           (* multiply and subtract *)
   | Ialloc_far of                       (* allocation in large functions *)
-      { words : int; label_after_call_gc : int (*Cmm.label*) option; }
+      { bytes : int; label_after_call_gc : int (*Cmm.label*) option; }
 
 (* note: we avoid introducing a dependency to Cmm since this dep
    is not detected when "make depend" is run under amd64 *)
@@ -118,5 +118,5 @@ let print_specific_operation printreg op ppf arg =
   | Imultsubf ->
       fprintf ppf "%a *f %a -f %a"
         printreg arg.(0) printreg arg.(1) printreg arg.(2)
-  | Ialloc_far { words; _ } ->
-      fprintf ppf "alloc_far %d" words
+  | Ialloc_far { bytes; _ } ->
+      fprintf ppf "alloc_far %d" bytes
diff --git a/asmcomp/power/emit.mlp b/asmcomp/power/emit.mlp
index d61fcf574160..f4147c492d0b 100644
--- a/asmcomp/power/emit.mlp
+++ b/asmcomp/power/emit.mlp
@@ -507,8 +507,8 @@ module BR = Branch_relaxation.Make (struct
     | Lpoptrap -> 2
     | Lraise _ -> 6
 
-  let relax_allocation ~num_words:words ~label_after_call_gc =
-    Lop (Ispecific (Ialloc_far { words; label_after_call_gc; }))
+  let relax_allocation ~num_bytes:bytes ~label_after_call_gc =
+    Lop (Ispecific (Ialloc_far { bytes; label_after_call_gc; }))
 
   (* [classify_addr], above, never identifies these instructions as needing
      relaxing.  As such, these functions should never be called. *)
@@ -770,7 +770,7 @@ let emit_instr i =
           | Single -> "stfs"
           | Double | Double_u -> "stfd" in
         emit_load_store storeinstr addr i.arg 1 i.arg.(0)
-    | Lop(Ialloc { words = n; label_after_call_gc; }) ->
+    | Lop(Ialloc { bytes = n; label_after_call_gc; }) ->
         if !call_gc_label = 0 then begin
           match label_after_call_gc with
           | None -> call_gc_label := new_label ()
@@ -782,7 +782,7 @@ let emit_instr i =
         `	bltl	{emit_label !call_gc_label}\n`;
         (* Exactly 4 instructions after the beginning of the alloc sequence *)
         record_frame i.live false Debuginfo.none
-    | Lop(Ispecific(Ialloc_far { words = n; label_after_call_gc; })) ->
+    | Lop(Ispecific(Ialloc_far { bytes = n; label_after_call_gc; })) ->
         if !call_gc_label = 0 then begin
           match label_after_call_gc with
           | None -> call_gc_label := new_label ()
diff --git a/asmcomp/printmach.ml b/asmcomp/printmach.ml
index f5be11c64342..0a0b06a5e103 100644
--- a/asmcomp/printmach.ml
+++ b/asmcomp/printmach.ml
@@ -143,7 +143,7 @@ let operation op arg ppf res =
        (Array.sub arg 1 (Array.length arg - 1))
        reg arg.(0)
        (if is_assign then "(assign)" else "(init)")
-  | Ialloc { words = n; _ } ->
+  | Ialloc { bytes = n; _ } ->
     fprintf ppf "alloc %i" n;
     if Config.spacetime then begin
       fprintf ppf "(spacetime node = %a)" reg arg.(0)
diff --git a/asmcomp/s390x/emit.mlp b/asmcomp/s390x/emit.mlp
index 22ae830725f8..f422ad29a905 100644
--- a/asmcomp/s390x/emit.mlp
+++ b/asmcomp/s390x/emit.mlp
@@ -418,7 +418,7 @@ let emit_instr i =
           | Double | Double_u -> "stdy" in
         emit_load_store storeinstr addr i.arg 1 i.arg.(0)
 
-    | Lop(Ialloc { words = n; label_after_call_gc; }) ->
+    | Lop(Ialloc { bytes = n; label_after_call_gc; }) ->
         let lbl_redo = new_label() in
         let lbl_call_gc = new_label() in
         let lbl_frame =
diff --git a/asmcomp/selectgen.ml b/asmcomp/selectgen.ml
index 586a5b869c6c..302cdafd0b77 100644
--- a/asmcomp/selectgen.ml
+++ b/asmcomp/selectgen.ml
@@ -403,8 +403,8 @@ method mark_instr = function
 
 (* Default instruction selection for operators *)
 
-method select_allocation words =
-  Ialloc { words; spacetime_index = 0; label_after_call_gc = None; }
+method select_allocation bytes =
+  Ialloc { bytes; spacetime_index = 0; label_after_call_gc = None; }
 method select_allocation_args _env = [| |]
 
 method select_checkbound () =
@@ -746,12 +746,11 @@ method emit_expr (env:environment) exp =
                   loc_arg (Proc.loc_external_results rd) in
               self#insert_move_results loc_res rd stack_ofs;
               Some rd
-          | Ialloc { words; spacetime_index; label_after_call_gc; } ->
-              assert (words <= Config.max_young_wosize);
+          | Ialloc { bytes = _; spacetime_index; label_after_call_gc; } ->
               let rd = self#regs_for typ_val in
-              let size = size_expr env (Ctuple new_args) in
+              let bytes = size_expr env (Ctuple new_args) in
               let op =
-                Ialloc { words = size; spacetime_index; label_after_call_gc; }
+                Ialloc { bytes; spacetime_index; label_after_call_gc; }
               in
               let args = self#select_allocation_args env in
               self#insert_debug (Iop op) dbg args rd;
diff --git a/asmcomp/spacetime_profiling.ml b/asmcomp/spacetime_profiling.ml
index 51d418a5c809..acabf7c04c50 100644
--- a/asmcomp/spacetime_profiling.ml
+++ b/asmcomp/spacetime_profiling.ml
@@ -361,7 +361,7 @@ class virtual instruction_selection = object (self)
       super#emit_blockheader env n dbg
     end
 
-  method! select_allocation words =
+  method! select_allocation bytes =
     if self#can_instrument () then begin
       (* Leave space for a direct call point.  We cannot easily insert any
          instrumentation code, so the fields are filled in instead by
@@ -373,12 +373,12 @@ class virtual instruction_selection = object (self)
           ~label
       in
       Mach.Ialloc {
-        words;
+        bytes;
         label_after_call_gc = Some label;
         spacetime_index = index;
       }
     end else begin
-      super#select_allocation words
+      super#select_allocation bytes
     end
 
   method! select_allocation_args env =