diff --git a/apps/knowledge/serializers/document.py b/apps/knowledge/serializers/document.py
index b32dc78f8..af6860e2f 100644
--- a/apps/knowledge/serializers/document.py
+++ b/apps/knowledge/serializers/document.py
@@ -606,8 +606,7 @@ class DocumentSerializers(serializers.Serializer):
             return FileSerializer.Operate(data={'id': file.id}).get(with_valid=True)
 
         def one(self, with_valid=False):
-            if with_valid:
-                self.is_valid(raise_exception=True)
+            self.is_valid(raise_exception=True)
             query_set = QuerySet(model=Document)
             query_set = query_set.filter(**{'id': self.data.get("document_id")})
             return native_search({
diff --git a/apps/knowledge/serializers/paragraph.py b/apps/knowledge/serializers/paragraph.py
index c02fe93c4..6d4e24dfb 100644
--- a/apps/knowledge/serializers/paragraph.py
+++ b/apps/knowledge/serializers/paragraph.py
@@ -361,6 +361,7 @@ class ParagraphSerializers(serializers.Serializer):
                 raise AppApiException(500, _('Knowledge id does not exist'))
 
         def get_query_set(self):
+            self.is_valid()
             query_set = QuerySet(model=Paragraph)
             query_set = query_set.filter(
                 **{'knowledge_id': self.data.get('knowledge_id'), 'document_id': self.data.get("document_id")})