diff --git a/rag/llm/rerank_model.py b/rag/llm/rerank_model.py
index 3a07e60067..a1ec3a17ea 100644
--- a/rag/llm/rerank_model.py
+++ b/rag/llm/rerank_model.py
@@ -365,7 +365,7 @@ class VoyageRerank(Base):
 class QWenRerank(Base):
     _FACTORY_NAME = "Tongyi-Qianwen"
 
-    def __init__(self, key, model_name="gte-rerank", base_url=None, **kwargs):
+    def __init__(self, key, model_name="gte-rerank", **kwargs):
         import dashscope
 
         self.api_key = key
@@ -376,18 +376,19 @@ class QWenRerank(Base):
 
         import dashscope
 
-        # qwen3-rerank does not support return_documents parameter  
-        if self.model_name.startswith("qwen3-rerank"):  
-            resp = dashscope.TextReRank.call(  
-                api_key=self.api_key, model=self.model_name,  
-                query=query, documents=texts, top_n=len(texts)  
-            )  
-        else:  
-            resp = dashscope.TextReRank.call(  
-                api_key=self.api_key, model=self.model_name,  
-                query=query, documents=texts,  
-                top_n=len(texts), return_documents=False  
-            )  
+        # Build call parameters
+        call_kwargs = {
+            "api_key": self.api_key,
+            "model": self.model_name,
+            "query": query,
+            "documents": texts,
+            "top_n": len(texts)
+        }
+        # qwen3-rerank does not support return_documents parameter
+        if not self.model_name.startswith("qwen3-rerank"):
+            call_kwargs["return_documents"] = False
+        
+        resp = dashscope.TextReRank.call(**call_kwargs)  
 
         rank = np.zeros(len(texts), dtype=float)
         if resp.status_code == HTTPStatus.OK: