diff --git a/resolvers/load.py b/resolvers/load.py
index 64e9faa..f880e83 100644
--- a/resolvers/load.py
+++ b/resolvers/load.py
@@ -30,7 +30,7 @@ async def load_messages(chat_id: str, limit: int = 5, offset: int = 0, ids: Opti
         if message_ids:
             message_keys = [f"chats/{chat_id}/messages/{mid}" for mid in message_ids]
             messages = (await redis.mget(*message_keys)) or []
-            messages = [json.loads(m) if m else None for m in messages]
+            messages = [json.loads(m) if isinstance(m, str) else m for m in messages]
             replies = []
             for m in messages:
                 if m: