diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index b4a894fe..adf6f930 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -524,7 +524,8 @@ class MlogChangeSerializer(CustomModelSerializer):
 class MlogbInSerializer(CustomModelSerializer):
     class Meta:
         model = Mlogb
-        fields = ['id', 'mlog', 'mtask', 'wm_in', 'count_use', 'count_pn_jgqbl', 'count_break', 'note']
+        fields = ['id', 'mlog', 'mtask', 'wm_in', 'count_use', 'count_pn_jgqbl',
+                  'count_break', 'note', "is_main_batchin"]
         extra_kwargs = {'count_use': {'required': True}, 'mtask': {'required': True}, 'wm_in': {'required': True}}
     
     def validate(self, attrs):