diff --git a/codex-rs/core/src/guardian/tests.rs b/codex-rs/core/src/guardian/tests.rs
index da03eb95a3..fefe15cb77 100644
--- a/codex-rs/core/src/guardian/tests.rs
+++ b/codex-rs/core/src/guardian/tests.rs
@@ -1696,6 +1696,7 @@ async fn guardian_review_request_layout_matches_model_visible_request_snapshot()
                     ),
                 }],
                 phase: None,
+                metadata: None,
             }],
         )
         .await;