diff --git a/release.nix b/release.nix
index 49d6ee2..86a64c1 100644
--- a/release.nix
+++ b/release.nix
@@ -32,9 +32,7 @@ in let
 
   # pkgs - Packages sucked in from the given ccpkgs git version.
   #
-  pkgs = import ccpkgsGit {
-    upstream = nixpkgsGit;
-  } // nixpkgsArgs;
+  pkgs = import ccpkgsGit ( nixpkgsArgs // { upstream = nixpkgsGit; } );
 
   # version        - Version number (e.g., "17.09")
   # version*Suffix - Version suffix (e.g., "5678.gfedcba")