diff --git a/llvm/docs/AMDGPUUsage.rst b/llvm/docs/AMDGPUUsage.rst
index 0a25fda829fd3..a1dc554864307 100644
--- a/llvm/docs/AMDGPUUsage.rst
+++ b/llvm/docs/AMDGPUUsage.rst
@@ -1165,6 +1165,7 @@ The AMDGPU backend uses the following ELF header:
      ``EF_AMDGPU_MACH_AMDGCN_GFX1013``    0x042      ``gfx1013``
      *reserved*                           0x043      Reserved.
      *reserved*                           0x044      Reserved.
+     *reserved*                           0x045      Reserved.
      ==================================== ========== =============================
 
 Sections
diff --git a/llvm/include/llvm/BinaryFormat/ELF.h b/llvm/include/llvm/BinaryFormat/ELF.h
index d8961aa43c48b..0dd5b9244890b 100644
--- a/llvm/include/llvm/BinaryFormat/ELF.h
+++ b/llvm/include/llvm/BinaryFormat/ELF.h
@@ -747,10 +747,11 @@ enum : unsigned {
   EF_AMDGPU_MACH_AMDGCN_GFX1013       = 0x042,
   EF_AMDGPU_MACH_AMDGCN_RESERVED_0X43 = 0x043,
   EF_AMDGPU_MACH_AMDGCN_RESERVED_0X44 = 0x044,
+  EF_AMDGPU_MACH_AMDGCN_RESERVED_0X45 = 0x045,
 
   // First/last AMDGCN-based processors.
   EF_AMDGPU_MACH_AMDGCN_FIRST = EF_AMDGPU_MACH_AMDGCN_GFX600,
-  EF_AMDGPU_MACH_AMDGCN_LAST = EF_AMDGPU_MACH_AMDGCN_RESERVED_0X44,
+  EF_AMDGPU_MACH_AMDGCN_LAST = EF_AMDGPU_MACH_AMDGCN_RESERVED_0X45,
 
   // Indicates if the "xnack" target feature is enabled for all code contained
   // in the object.