IEQ Credit 5 - Supply Air Recirculation

In our project, we have a janitor room adjacent to a toilet and these both rooms have exhaust duct which are combined together & exhausted directly to outside without re circulation. But, we have common a fan coil unit to these rooms (i.e, supply air is going to both rooms & return air is taking from both room). Also,fresh air is provided to these room via FCU (in false ceiling) and both rooms are negatively pressurized. Our concern is that return air from janitor room is going to FCU & this same FCU is serving toilet also. Will this affect our IEQc5 credit ?