diff --git a/pkgs/by-name/so/sourcepawn-studio/package.nix b/pkgs/by-name/so/sourcepawn-studio/package.nix
index d0ad1266047d..04cb0fc52393 100644
--- a/pkgs/by-name/so/sourcepawn-studio/package.nix
+++ b/pkgs/by-name/so/sourcepawn-studio/package.nix
@@ -25,7 +25,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
 
   checkFlags = [
     # requires rustup and rustfmt
-    "--skip tests::sourcegen::generate_node_kinds"
+    "--skip=tests::sourcegen::generate_node_kinds"
   ];
 
   passthru.updateScript = nix-update-script { };