diff --git a/server/knowledge_base/migrate.py b/server/knowledge_base/migrate.py
index 517ed40..584e543 100644
--- a/server/knowledge_base/migrate.py
+++ b/server/knowledge_base/migrate.py
@@ -37,7 +37,6 @@ def folder2db(
     kb_names: List[str],
     mode: Literal["recreate_vs", "update_in_db", "increament"],
     vs_type: Literal["faiss", "milvus", "pg", "chromadb"] = DEFAULT_VS_TYPE,
-    kb_info: dict[str, Any] = {},
     embed_model: str = EMBEDDING_MODEL,
     chunk_size: int = CHUNK_SIZE,
     chunk_overlap: int = OVERLAP_SIZE,