Satisfying hisl_0002: Ensuring input to rem & reciprocal are nonzero

Hi! I have a couple of reciprocal blocks which are getting flagged by a model advisor check (mathworks.hism.hisl_0002).

These blocks are in a custom library block and I know I can add exclusions for this library block, but is that the best answer? I also know there are many ways to protect a signal from becoming zero (especially if the signal's value originates as a mask parameter, like mine does...) but I'm wondering, is there is a block I can put immediately before the reciprocal block, which hisl_0002 would detect as a nonzero guarantee?

BTW, I'm using R2018b but can't select that version in the release option box below.