diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index c0588f4a..ac77d880 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -214,7 +214,6 @@ class MlogbSerializer(CustomModelSerializer):
         source='material_out', read_only=True)
     material_out_name = serializers.StringRelatedField(
         source='material_out', read_only=True)
-    mlogbdefect = MlogbDefectSerializer(many=True)
 
     class Meta:
         model = Mlogb