Forum:Category deletion issues

We are having a massive category clean-up on one of the wikis I work on, but the problem is that deleted categories still appear in the suggestions when typing in the first few letters of the category. We have tried removing the deleted category from all pages, but it still shows up in the suggestions. Is there any way to stop this? Because it causes inexperienced users to keep adding them, after which we admin have to remove them again. Thanks in advance. Nesty Contact me! 18:05, March 30, 2012 (UTC)