Frostbolt macro help

trying to get this macro to work. the mouseover part works but when i try to cast using the macro on my target it doesnt work and it should.

/cast [target=mouseover,exists]Frostbolt(Rank 1); Frostbolt(Rank1)

You didn’t add the space between rank and 1.

/cast [@mouseover,harm][]Frostbolt(Rank 1)

omggg xDD thanks. smh