Dear statlists,

I have a very brief question, but I cannot wrap my head around why this doesn't work. For some reason rdrobust doesn't allow me to include covariates with the covs command. It is a continuous variable that work perfectly in all other regressions so it isn't the variable that is the problem. Does anyone knows why this might be the case?

Code:
rdrobust depvar runvar, covs(control) 
option covs() not allowed
r(198);
Best