diff --git a/rqalpha/api.py b/rqalpha/api.py
index <HASH>..<HASH> 100644
--- a/rqalpha/api.py
+++ b/rqalpha/api.py
@@ -33,9 +33,9 @@ from .analyser.order_style import MarketOrder, LimitOrder
 
 
 __all__ = [
-    scheduler.__name__,
-    LimitOrder.__name__,
-    MarketOrder.__name__
+    'scheduler',
+    'LimitOrder',
+    'MarketOrder',
 ]
revert __all__ definitions