diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d7a83d8cb21..9364e2c466c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5493,7 +5493,7 @@ let
 
   cmake-2_8 = callPackage ../development/tools/build-managers/cmake/2.8.nix {
     wantPS = stdenv.isDarwin;
-    ps     = if stdenv.isDarwin then darwin.adv_cmds else null;
+    inherit (darwin) ps;
   };
 
   cmake = callPackage ../development/tools/build-managers/cmake {