diff --git a/backend/routes/history.py b/backend/routes/history.py
index f8233e3c..df97b6f4 100644
--- a/backend/routes/history.py
+++ b/backend/routes/history.py
@@ -89,6 +89,11 @@ async def get_generation(
         duration=gen.duration,
         seed=gen.seed,
         instruct=gen.instruct,
+        engine=gen.engine or "qwen",
+        model_size=gen.model_size,
+        status=gen.status or "completed",
+        error=gen.error,
+        is_favorited=bool(gen.is_favorited),
         created_at=gen.created_at,
     )