diff --git a/packages/.nixd.json b/packages/.nixd.json
index dd149e4b..9cc5cfb6 100644
--- a/packages/.nixd.json
+++ b/packages/.nixd.json
@@ -1,7 +1,10 @@
 {
   "eval": {
     "target": {
-      "args": ["--expr", "with import <nixpkgs> { }; ./default.nix { }"]
+      "args": [
+        "--expr",
+        "with import <nixpkgs> { }; callPackage ./nullpomino.nix { }"
+      ]
     }
   }
 }
diff --git a/packages/nullpomino.nix b/packages/nullpomino.nix
index 7f507578..6104ad80 100644
--- a/packages/nullpomino.nix
+++ b/packages/nullpomino.nix
@@ -1,8 +1,8 @@
-{ lib
-, stdenv
-, fetchFromGithub
+{
+  lib,
+  stdenv,
+  fetchFromGithub,
 }:
 stdenv.mkDerivation {
-  pname = "nullpomino";
-  version = "v7.5.0";
+  name = "nullpomino";
 }