diff --git a/flake.nix b/flake.nix
index 732383379b..cdab58517a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -208,7 +208,10 @@
               substituteInPlace modules/setting/server.go --subst-var data
             '';
 
-            subPackages = ["."];
+            subPackages = [
+              "."
+              "contrib/environment-to-ini"
+            ];
 
             nativeBuildInputs = [makeWrapper];