diff --git a/qlib/strategy/__init__.py b/qlib/strategy/__init__.py
index e3fcd8e26..59e481eb9 100644
--- a/qlib/strategy/__init__.py
+++ b/qlib/strategy/__init__.py
@@ -1,4 +1,2 @@
 # Copyright (c) Microsoft Corporation.
 # Licensed under the MIT License.
-
-from .base import *