diff --git a/autocomplete_multi_models/business_process.py b/autocomplete_multi_models/business_process.py
index e33e48334c3b6a961c72767300034bdeb71d2a7f..b86026af350bf7ccbdfda1fb767a722b134053d2 100644
--- a/autocomplete_multi_models/business_process.py
+++ b/autocomplete_multi_models/business_process.py
@@ -44,16 +44,15 @@ def rebuild_index():
     models.IndexedWord.objects.bulk_create(objects.values())
 
 
-
-def clean_duplicate():
-    models.IndexedWord.objects.annotate(
-        is_duplicate=Exists(
-            models.IndexedWord.objects.filter(
-                word__iexact=OuterRef('word'),
-                pk__gt=OuterRef('pk'),
-            )
-        )
-    ).filter(is_duplicate=True).delete()
+# def clean_duplicate():
+#     models.IndexedWord.objects.annotate(
+#         is_duplicate=Exists(
+#             models.IndexedWord.objects.filter(
+#                 word__iexact=OuterRef('word'),
+#                 pk__gt=OuterRef('pk'),
+#             )
+#         )
+#     ).filter(is_duplicate=True).delete()
 
 
 def add_instance_to_index(instance, field_names: List[str]):