# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2012-07-07 13:26:52 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/221596144315277312) So [NSPredicate predicateWithFormat:@"%@ == %@",attributeName,valueObject]; doesn't work. Can only provide the value as a variable it seems.