diff --git a/qlib/data/client.py b/qlib/data/client.py
index 488f5698e..d9af2456d 100644
--- a/qlib/data/client.py
+++ b/qlib/data/client.py
@@ -10,7 +10,6 @@ import socketio
 
 import qlib
 
-from ..config import C
 from ..log import get_module_logger