Yeah, super glue (CA glue). It probably won't help; if it holds, it will be the bolts holding it, but putting the glue on there was an added step that let me feel like I did everything I could to keep it together.
On the other hand, super glue has been known to be sufficient for temporarily holding workpieces to faceplates and such, so, ... maybe it was worthwhile? Yeah, I'm going to go with that. It was totally worth my time.