BMO didn't withhold on my GIC interest

[heyhey]

i am a US resident, and have BMO bank account clearly listing me as a non-resident. Sold some BMO GICs for about $2000 in interest. Just realized the NR4s issued by BMO do not have withholding. I file a T1 every year for rental income on properties in Canada through an accountant. But obviously can't claim the GIC interest that way. Should I wait for Canada Revenue assessment which, maybe, would take out the amount I owe for the GIC interest out of my refund ? Or do I need to file a separate return for the $2000? I will have to do myself because my accountant will charge few hundred dollars which, on such a small amount, is very irritating. But I would do it right now if the answer is "yes file form xxxx".

[nelsona]

US residents do not pay Cdn tax on bank interest earned in Canada.
It is reported only on your US return