diff --git a/codex-rs/codex-api/src/sse/responses.rs b/codex-rs/codex-api/src/sse/responses.rs
index 9d2a1be07..2ec8271c2 100644
--- a/codex-rs/codex-api/src/sse/responses.rs
+++ b/codex-rs/codex-api/src/sse/responses.rs
@@ -301,7 +301,9 @@ pub async fn process_sse(
                     }
                 }
             }
-            _ => {}
+            _ => {
+                trace!("unhandled SSE event: {:#?}", event.kind);
+            }
         }
     }
 }