diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 0effbea6d48..20f36cc1e33 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5378,7 +5378,7 @@ let
       inherit fetchgit stdenv kernel perl;
     };
 
-    aufs2Utils = if kernel.features ? aufs then
+    aufs2Utils = if lib.attrByPath ["features" "aufs"] false kernel then
       builderDefsPackage ../os-specific/linux/aufs2-utils {
         inherit kernel;
       }