diff --git a/apps/system/serializers.py b/apps/system/serializers.py
index f2c90bb9..eaddce82 100755
--- a/apps/system/serializers.py
+++ b/apps/system/serializers.py
@@ -441,7 +441,7 @@ class MyScheduleCreateSerializer(CustomModelSerializer):
 
 class MyScheduleSerializer(CustomModelSerializer):
     interval_ = IntervalScheduleSerializer(source='interval', read_only=True)
-    crontab = CrontabScheduleSerializer(source='crontab', read_only=True)
+    crontab_ = CrontabScheduleSerializer(source='crontab', read_only=True)
 
     class Meta:
         model = MySchedule