diff --git a/UI/Scheduler/UIxComponentEditor.m b/UI/Scheduler/UIxComponentEditor.m
index d68d54167..a8e67b593 100644
--- a/UI/Scheduler/UIxComponentEditor.m
+++ b/UI/Scheduler/UIxComponentEditor.m
@@ -842,7 +842,7 @@ static NSArray *reminderValues = nil;
 
   clientObject = [self clientObject];
   ownerUser = [SOGoUser userWithLogin: [clientObject ownerInContext: context]];
-  if ([clientObject isKindOfClass: [SOGoWebAppointmentFolder class]])
+  if ([[clientObject container] isKindOfClass: [SOGoWebAppointmentFolder class]])
     rc = componentReadableOnly;
   else
     {