diff --git a/mayan/apps/common/mixins.py b/mayan/apps/common/mixins.py
index 58559ddf05..3d33520837 100644
--- a/mayan/apps/common/mixins.py
+++ b/mayan/apps/common/mixins.py
@@ -29,7 +29,7 @@ class ObjectListPermissionFilterMixin(object):
         if self.object_permission:
             try:
                 # Check to see if the user has the permissions globally
-                Permission.objects.check_permissions(self.request.user, [self.object_permission])
+                Permission.objects.check_permissions(self.request.user, (self.object_permission,))
             except PermissionDenied:
                 # No global permission, filter ther queryset per object + permission
                 return AccessEntry.objects.filter_objects_by_access(self.object_permission, self.request.user, queryset)
@@ -47,7 +47,7 @@ class ObjectPermissionCheckMixin(object):
 
         if self.object_permission:
             try:
-                Permission.objects.check_permissions(request.user, [self.object_permission])
+                Permission.objects.check_permissions(request.user, (self.object_permission,))
             except PermissionDenied:
                 AccessEntry.objects.check_access(self.object_permission, request.user, self.get_object())
 
@@ -80,6 +80,6 @@ class ViewPermissionCheckMixin(object):
 
     def dispatch(self, request, *args, **kwargs):
         if self.view_permission:
-            Permission.objects.check_permissions(self.request.user, [self.view_permission])
+            Permission.objects.check_permissions(self.request.user, (self.view_permission,))
 
         return super(ViewPermissionCheckMixin, self).dispatch(request, *args, **kwargs)