diff --git a/shell.nix b/shell.nix
index 306fb17..3bdcf9d 100644
--- a/shell.nix
+++ b/shell.nix
@@ -14,6 +14,6 @@ pkgs.mkShell {
 
   shellHook = ''
     export NIXOPS_DEPLOYMENT=schulischer-schabernack-hcloud
-    export NIX_PATH=nixpkgs=$(${pkgs.jq}/bin/jq -r .nixpkgs.url nix/sources.json)
+    export NIX_PATH=nixpkgs=${sources.nixpkgs}
   '';
 }