EAM Potential

Dear all
I want to use Fe-Fe interaction with eam/fs potential and Fe-Cr and Cr-Cr interaction with eam/alloy potential. Is my following command for doing this correct?
pair_style hybrid eam/alloy eam/fs
pair_coeff * * eam/alloy FeNiCr.eam.alloy Fe Cr
pair_coeff * * eam/fs Fe_mm.eam.fs Fe NULL

Best wishes
Amin