diff --git a/test/blackbox-tests/test-cases/custom-cross-compilation/ppx-cross.t b/test/blackbox-tests/test-cases/custom-cross-compilation/ppx-cross.t
deleted file mode 100644
index 3de9a567c9e4..000000000000
--- a/test/blackbox-tests/test-cases/custom-cross-compilation/ppx-cross.t
+++ /dev/null
@@ -1,68 +0,0 @@
-Demonstrate a bad interaction between cross-compilation and
-ppx_runtime_libraries
-
-  $ mkdir -p etc/findlib.conf.d
-  $ export OCAMLFIND_CONF=$PWD/etc/findlib.conf
-  $ touch etc/findlib.conf etc/findlib.conf.d/foo.conf
-
-Create lib1, ppx and lib2:
-- lib1 is a regular library
-- ppx has a runtime dep on lib1 (via `ppx_runtime_libraries`)
-- lib2 is a regular library pre-processed by `ppx`
-
-  $ mkdir lib1 ppx lib2
-  $ cat > dune-project <<EOF
-  > (lang dune 3.7)
-  > (package (name ppx-cross))
-  > EOF
-
-  $ cat > lib1/dune <<EOF
-  > (library
-  >  (name lib1)
-  >  (public_name ppx-cross.lib1))
-  > EOF
-
-In the ppx, removing `ppx_runtime_libraries` makes the test pass
-
-  $ cat > ppx/dune <<EOF
-  > (library
-  >  (name ppx)
-  >  (public_name ppx-cross.ppx)
-  >  (kind ppx_rewriter)
-  >  (ppx.driver (main Ppx.main))
-  >  (ppx_runtime_libraries lib1))
-  > EOF
-  $ cat > ppx/ppx.ml <<EOF
-  > let main () =
-  >   let out = ref "" in
-  >   let args =
-  >     [ ("-o", Arg.Set_string out, "")
-  >     ; ("--impl", Arg.Set_string (ref ""), "")
-  >     ; ("--as-ppx", Arg.Set (ref false), "")
-  >     ; ("--cookie", Arg.Set (ref false), "")
-  >     ]
-  >   in
-  >   let anon _ = () in
-  >   Arg.parse (Arg.align args) anon "";
-  >   let out = open_out !out in
-  >   close_out out;
-  > EOF
-
-  $ cat > lib2/dune <<EOF
-  > (library
-  >  (name lib2)
-  >  (public_name ppx-cross.lib2)
-  >  (preprocess (pps ppx)))
-  > EOF
-  $ touch lib2/lib2.ml
-
-  $ dune build @install -x foo
-  Error: Conflict between the following libraries:
-  - "ppx-cross.lib1" in _build/default.foo/lib1
-  - "ppx-cross.lib1" in _build/default/lib1
-  -> required by _build/default.foo/lib2/.lib2.objs/byte/lib2.cmt
-  -> required by _build/install/default.foo/lib/ppx-cross/lib2/lib2.cmt
-  -> required by _build/default.foo/ppx-cross-foo.install
-  -> required by alias install (context default.foo)
-  [1]
-