Hi Yamin, This makefile worked just fine for me: --------8<-------- FileList := \ one.ob3 \ two.ob3 \ three.ob3 \ .PHONY : default default : @echo 'FileList: $(FileList)' @echo 'FileList: $(addprefix Pre,$(FileList))' --------8<-------- What's your "%exec" for in your target? HTH, --Eljay