The Canadian $5 bill has a likeness of the country’s seventh prime minister, who is easily made to look like the late Leonard Nimoy’s Spock character. And that's what people have been doing, in tribute to the late actor.

It’s not illegal, but retailers may still reject the defaced bills, the Bank of Canada says. And it’s just not right, in their opinion:

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"The Bank of Canada feels that writing and markings on bank notes are inappropriate as they are a symbol of our country and a source of national pride," bank spokeswoman Josianne Menard told the Canadian Broadcasting Corporation.

The questionable tribute has been riding a wave of #SpockYourFives hashtags.