diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index 633aa545..0ba2f91b 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -216,15 +216,6 @@ class MlogbSerializer(CustomModelSerializer):
         extra_kwargs = {
             'material_out': {'required': True, 'allow_null': False}}
         
-class MlogbDetailSerializer(CustomModelSerializer):
-    material_out_name = serializers.StringRelatedField(
-        source='material_out', read_only=True)
-    material_in_name = serializers.StringRelatedField(source='material_in', read_only=True)
-    material_out_tracking = serializers.IntegerField(source="material_out.tracking", read_only=True)
-
-    class Meta:
-        model = Mlogb
-        fields = '__all__'
 
 class MlogListSerializer(CustomModelSerializer):
     mstate_json = serializers.JSONField(source='mgroup.process.mstate_json', read_only=True)
@@ -270,6 +261,24 @@ class MlogListSerializer(CustomModelSerializer):
         model = Mlog
         fields = '__all__'
 
+class MlogbDefectSerializer(CustomModelSerializer):
+    defect_name = serializers.CharField(source="defect.name", read_only=True)
+    class Meta:
+        model = MlogbDefect
+        fields = ["id", "defect_name", "count", "mlogb", "defect"]
+
+
+class MlogbDetailSerializer(CustomModelSerializer):
+    material_out_name = serializers.StringRelatedField(
+        source='material_out', read_only=True)
+    material_in_name = serializers.StringRelatedField(source='material_in', read_only=True)
+    material_out_tracking = serializers.IntegerField(source="material_out.tracking", read_only=True)
+    mlogbdefect = MlogbDefectSerializer(many=True, read_only=True)
+
+    class Meta:
+        model = Mlogb
+        fields = '__all__'
+
 class MlogSerializer(CustomModelSerializer):
     mstate_json = serializers.JSONField(source='mgroup.process.mstate_json', read_only=True)
     supplier_name = serializers.CharField(source='supplier.name', read_only=True)
@@ -688,12 +697,6 @@ class MlogbwCreateUpdateSerializer(CustomModelSerializer):
             mlogbw = self.save_ftest(mlogbw, ftest_data)
         return mlogbw
 
-class MlogbDefectSerializer(CustomModelSerializer):
-    defect_name = serializers.CharField(source="defect.name", read_only=True)
-    class Meta:
-        model = MlogbDefect
-        fields = ["id", "defect_name", "count", "mlogb", "defect"]
-
 class MlogbOutUpdateSerializer(CustomModelSerializer):
     mlogbdefect = MlogbDefectSerializer(many=True, required=False)