diff --git a/pkgs/os-specific/darwin/apple-source-releases/architecture/default.nix b/pkgs/os-specific/darwin/apple-source-releases/architecture/default.nix
index ebeb3ef08845..4a155a4c403a 100644
--- a/pkgs/os-specific/darwin/apple-source-releases/architecture/default.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/architecture/default.nix
@@ -3,12 +3,6 @@
 appleDerivation {
   dontBuild = true;
 
-  postPatch = ''
-    substituteInPlace Makefile \
-        --replace '/bin/mkdir' 'mkdir' \
-        --replace '/usr/bin/install' 'install'
-  '';
-
   installFlags = [ "EXPORT_DSTDIR=/include/architecture" ];
 
   DSTROOT = "$(out)";