diff --git a/generic/views.py b/generic/views.py
index 53f9b9e2..c2fc8a38 100644
--- a/generic/views.py
+++ b/generic/views.py
@@ -218,7 +218,7 @@ class ExamViews(View, LoginRequiredMixin):
         exam = get_object_or_404(self.Exam, pk=pk)
 
         if self.app_name == "longs":
-            if request.user not in exam.get_author_objects:
+            if request.user not in exam.get_author_objects():
                 if not request.user.groups.filter(name='long_checker').exists():
                     raise PermissionDenied