diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index 222ad899..e9608aec 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -219,6 +219,7 @@ 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
diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index a454fe7a..2291ea32 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -500,6 +500,7 @@ class MlogbViewSet(CustomListModelMixin, CustomGenericViewSet):
     perms_map = {'get': '*'}
     queryset = Mlogb.objects.all()
     serializer_class = MlogbDetailSerializer
+    select_related_fields = ["material_out", "material_in"]
     filterset_class = MlogbFilter
     ordering = ["create_time"]