diff --git a/cvat/apps/engine/urls.py b/cvat/apps/engine/urls.py
index 02f9f253f619..3d9bb74f1a17 100644
--- a/cvat/apps/engine/urls.py
+++ b/cvat/apps/engine/urls.py
@@ -77,7 +77,7 @@ def _map_format_to_schema(request, scheme=None):
     path('api/v1/cvat-grades', views.post_grades),
     path('api/v1/grade-parameters', views.GradeParametersFromCertificateView.as_view(), name="cron-helper"),
     path('api/v1/grade-parameters-filename', views.GradeParametersFromFileNameView.as_view(), name="grade-parameters-filename"),
-    path('api/v1/check-duplicate-certificates', views.CheckDuplicateCertificatesView.as_view(), name="check-duplicate-certificates")
+    path('api/v1/check-duplicate-certificates', views.CheckDuplicateCertificatesView.as_view(), name="check-duplicate-certificates"),
     path('api/v1/grade-parameters-task-name', views.GradeParametersFromTaskNameView.as_view(), name="grade-parameters-task-name"),
 
 ]