diff --git a/tencentcloud/common/credential.py b/tencentcloud/common/credential.py
index 34f3e2658..643744410 100644
--- a/tencentcloud/common/credential.py
+++ b/tencentcloud/common/credential.py
@@ -116,10 +116,10 @@ def get_role_name(self):
         try:
             resp = urlopen(self._role_endpoint)
             self.role = resp.read().decode("utf8")
+            return self.role
         except Exception as e:
             raise TencentCloudSDKException("ClientError.MetadataError", str(e))
-        finally:
-            return self.role
+            
 
     def _need_refresh(self):
         ts_remain = self._expired_ts - int(time.time())