diff --git a/lightrag/operate.py b/lightrag/operate.py
index d521686f..70ae4893 100644
--- a/lightrag/operate.py
+++ b/lightrag/operate.py
@@ -1075,7 +1075,7 @@ async def mix_kg_vector_query(
         context_str = f"""
         -----Knowledge Graph Context-----
         {kg_context if kg_context else "No relevant knowledge graph information found"}
-        
+
         -----Vector Context-----
         {vector_context if vector_context else "No relevant text information found"}
         """.strip()