diff --git a/pkgs/by-name/ro/router/package.nix b/pkgs/by-name/ro/router/package.nix
index 34820633cdc7..bbdfe1339043 100644
--- a/pkgs/by-name/ro/router/package.nix
+++ b/pkgs/by-name/ro/router/package.nix
@@ -37,10 +37,11 @@ rustPlatform.buildRustPackage rec {
 
   # The v8 package will try to download a `librusty_v8.a` release at build time to our read-only filesystem
   # To avoid this we pre-download the file and export it via RUSTY_V8_ARCHIVE
-  RUSTY_V8_ARCHIVE = callPackage ./librusty_v8.nix { };
+  env.RUSTY_V8_ARCHIVE = callPackage ./librusty_v8.nix { };
 
   cargoTestFlags = [
-    "-- --skip=query_planner::tests::missing_typename_and_fragments_in_requires"
+    "--"
+    "--skip=query_planner::tests::missing_typename_and_fragments_in_requires"
   ];
 
   passthru = {