diff --git a/web_admin/serializers/article_serializer.py b/web_admin/serializers/article_serializer.py
index c58f97a..f8c7f67 100644
--- a/web_admin/serializers/article_serializer.py
+++ b/web_admin/serializers/article_serializer.py
@@ -240,7 +240,7 @@ class ArticleListSerializer(serializers.ModelSerializer):
         """complete all question"""
         junior_article = JuniorArticle.objects.filter(article=obj).last()
         if junior_article:
-            junior_article.is_completed
+            return junior_article.is_completed
         return False
 
 class ArticleQuestionSerializer(serializers.ModelSerializer):