This should have been part of R2 Service Pack 1. So I would make sure that is installed first.
Source: https://social.technet.microsoft.com/Forums/en-US/f3eb7a3a-72b9-420c-bc9a-204927d4e446/kb-981776-why-wont-this-hotfix-apply-to-my-server?forum=winservergen
Of course, there is only 314 days left until Windows 2008 R2 is out of support.