diff --git a/apps/cm/serializers.py b/apps/cm/serializers.py
index 66f59ea8..ba6976a4 100644
--- a/apps/cm/serializers.py
+++ b/apps/cm/serializers.py
@@ -12,6 +12,7 @@ class LabelMatSerializer(serializers.ModelSerializer):
     material_name = serializers.StringRelatedField(source='material', read_only=True)
     material_origin_name = serializers.StringRelatedField(source='material_origin', read_only=True)
     supplier_name = serializers.CharField(source='supplier.name', read_only=True)
+    defect_name = serializers.CharField(source="defect.name", read_only=True)
     notok_sign_name = serializers.SerializerMethodField()
     state_name = serializers.SerializerMethodField()
     class Meta: