diff --git a/pkgs/top-level/release.nix b/pkgs/top-level/release.nix
index 91cbdb870c15..9436457a09b8 100644
--- a/pkgs/top-level/release.nix
+++ b/pkgs/top-level/release.nix
@@ -9,7 +9,7 @@ let
 
   
     tarball =
-      { nixpkgs ? {path = ../../../nixpkgs-wc; rev = 1234;}
+      { nixpkgs ? {path = (allPackages {}).lib.cleanSource ../..; rev = 1234;}
       , officialRelease ? false
       }: