diff --git a/app/utils/milvus_utils.py b/app/utils/milvus_utils.py
index 5a93783..f2d8225 100644
--- a/app/utils/milvus_utils.py
+++ b/app/utils/milvus_utils.py
@@ -20,6 +20,7 @@ class KnowledgeQueryParam(BaseModel):
 
 
 class MilvusSearchNode(BaseModel):
+  id: str = Field(..., description="文档id")
   text: str = Field(..., description="文档内容")
   metadata: dict = Field(..., description="文档元信息")
   score: float = Field(..., description="相似度分数")