diff --git a/shell.nix b/shell.nix
index c27ec24..9c27da4 100644
--- a/shell.nix
+++ b/shell.nix
@@ -13,5 +13,7 @@ mkShell {
   shellHook = ''
     # try to work aroud build issues
     unset TMPDIR
+
+    export NIX_PATH=nixpkgs=${toString nixpkgs}
   '';
 }