Looks like Canadians aren't turning to a Tim Horton's double-double to warm them up.

Tim Hortons sales have dropped by 0.6 per cent internationally, and 0.4 per cent in Canada.

"I hate to use weather as an excuse," the CEO of Tim Hortons' parent company Restaurant Brands Inc. said during a conference call to investors...before he did just that.

Jose Cil, who began his new role as CEO in January, says this year's extremely cold winter is to blame for slowing sales.

Along with Canada's bitter weather, he's pointing fingers at Tim Hortons' beloved, but outdated, Roll Up the Rim promotion. 

"It's become clear to us that it needs a modern and fresh approach to engage our guests in a stronger way going forward," added Cil.

Cil said that Roll Up the Rim had a poor performance in 2018 and despite adding more prizes to this year's coffee competition, sales continued to drop.

An updated and digital version of Roll Up the Rim is slated to launch next year, but Twitter has mixed opinions on the game in general.

Crazy idea but hear me out. Maybe throw in a couple winners here and there?

— don 🅥 (@castrophysics) April 29, 2019

Unlike Tim Hortons, the company's other fast-food chains—Burger King and Popeyes—have continued to see an increase in sales.

It seems Canadians would rather a Whopper or a drumstick during the harsh winter months.

@TimHortons how about a promo that the consumer gets a chance at a prize if they use their own cup. An anti rollup the rim. That’s what people are looking for. That and coffee that doesn’t taste like there’s a cigarette butt hiding in the bottom of it.

— CantWhipARabbit (@CantWhipARabbit) April 29, 2019

Although this quarter hasn't been Tim Hortons' best, Cil says that they expect sales to climb with the country's thermometers this month. We are approaching Iced Capp season, after all.