Liberal MPP and Economic Development Minister Brad Duguid. (Jack Boland/Toronto Sun files)

TORONTO - A staffer with Economic Development Minister Brad Duguid is on the naughty list after Christmas cards were sent out with what is suspected to be fake postage.

"The individual responsible has offered his resignation, and I have accepted it," Duguid said in a statement Thursday.

"Any postage costs associated with this matter will be reimbursed. I will co-operate with any request for further information from Canada Post or the federal government. I will also be bringing this matter to the attention of Ontario's Integrity Commissioner."