diff --git a/shell.nix b/shell.nix
index 26aaad6035ca9b16f36eb832d591bddce8a93cbb..0c9c12f9b65990d42cd37194d33cee834d26e79b 100644
--- a/shell.nix
+++ b/shell.nix
@@ -15,7 +15,7 @@ let
   morph = pkgs.callPackage (morph-src + "/nix-packaging") { };
 in
 pkgs.mkShell {
-  NIX_PATH = "nixpkgs=${nixpkgs-pin.url}";
+  NIX_PATH = "nixpkgs=${nixpkgs.path}";
   buildInputs = [
     morph
   ];