diff --git a/libs/redis/langchain_redis/chat_message_history.py b/libs/redis/langchain_redis/chat_message_history.py
index 64d2f05..5ecd68e 100644
--- a/libs/redis/langchain_redis/chat_message_history.py
+++ b/libs/redis/langchain_redis/chat_message_history.py
@@ -323,5 +323,5 @@ def search_messages(self, query: str, limit: int = 10) -> List[Dict[str, Any]]:
         return [json.loads(doc.json)["data"] for doc in results.docs]
 
     def __len__(self) -> int:
-        query = Query(f"@session_id:{{{self.session_id}}}")
+        query = Query(f"@session_id:{{{self.session_id}}}").no_content()
         return self.redis_client.ft(self.index_name).search(query).total