Setting InDesign CC as default program to open indd files

I have both CS6 and CC for inDesign.  I need to keep CS6 for a plug-in which is not available yet for CC.  indd files are opening with CS6 as default, even if CC is open.  I have tried the Open with feature, and browse to the CC program, but when I click on it, my computer doesn't recognize it as a possibility for opening CC.  I have uninstalled CS6 and CC became available as the default, but as soon as I put CS6 back on, no dice.  Any ideas?