diff --git a/pkgs/tools/archivers/p7zip/default.nix b/pkgs/tools/archivers/p7zip/default.nix
index a0f3bcb0ebb9..63487b460343 100644
--- a/pkgs/tools/archivers/p7zip/default.nix
+++ b/pkgs/tools/archivers/p7zip/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
     makeFlagsArray=(DEST_HOME=$out)
     buildFlags=all3
   '' + stdenv.lib.optionalString stdenv.isDarwin ''
-    cp makefile.macosx_64bits makefile.machine
+    cp makefile.macosx_llvm_64bits makefile.machine
   '';
 
   enableParallelBuilding = true;