How to re-root Nexus 7 (Wi-Fi) after update to Android 5.0.1? topic

Hello,

I posted this in Wug's Nexus Toolkit 1.9.3 thread, and I think that's the wrong place to go?

So I rooted my Nexus 7 about three weeks ago, using version 1.9.8 of the toolkit. I just got the update to Android 5.0.1 yesterday, and SuperSU is telling me that I have to re-root to be able to use RootBrowser. How does one "re-root"? Do I just plug my Nexus into my computer and run the toolkit as usual? Or do I need to go back to stock, and then root?

Thank you all in advance!