diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 4c9f5af28b88..cabf527ea35d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2788,7 +2788,7 @@ rec {
   # this creates a patch which can be applied to the kernel to integrate this module..
   kernel_module_acerhk = import ../os-specific/linux/kernel/acerhk {
     inherit fetchurl stdenv gnupatch;
-    kernel = builtins.getAttr kernel "2.6.21";
+    kernel = builtins.getAttr "2.6.21" kernel;
     debug = true;
   };