diff --git a/generic/views.py b/generic/views.py
index a45abb26..f1952b3e 100644
--- a/generic/views.py
+++ b/generic/views.py
@@ -292,11 +292,11 @@ class ExamViews(View, LoginRequiredMixin):
         exam = get_object_or_404(self.Exam, pk=pk)
 
         if request.user not in exam.author.all():
-            if self.app_name == "rapids" and not request.user.groups.filter(name='rapid_checker').exists():
+            if self.app_name == "rapids" and request.user.groups.filter(name='rapid_checker').exists():
                 raise PermissionDenied
-            if self.app_name == "anatomy" and not request.user.groups.filter(name='anatomy_checker').exists():
+            if self.app_name == "anatomy" and request.user.groups.filter(name='anatomy_checker').exists():
                 raise PermissionDenied
-            if self.app_name == "longs" and not request.user.groups.filter(name='longs_checker').exists():
+            if self.app_name == "longs" and request.user.groups.filter(name='longs_checker').exists():
                 raise PermissionDenied