Almost one year from today, marijuana will be fully legalized in Canada—or at least that was the plan until Canadians went and smoked it all before they had legal clearance to do so.

Ontario’s finance minister, Charles Sousa, told media that the threat of a “supply crunch” had been discussed in a recent meeting with provincial and federal colleagues, according to Bloomberg. “Ultimately, the biggest problem that appears after today’s discussion is one of supply,” he said.

Canada’s legalization law, for the unfamiliar, will allow four plants per household. The legal age to consume the plant will be 18 and anybody who attempts selling to a minor can face up to 14 years in prison.

In the meeting, finance ministers were informed that demand for the green stuff in the nation is already “quite high"—a phrase I hope they used purposely. Now, they’re worried that when legalization is made official, there won’t be enough supply to meet demand. As of March 31, Canada had 167,754 registered medicinal marijuana users; that’s three times more than the year prior.

While still up in the air, taxes on marijuana appear to be quite a draw as well. Federal Finance Minister Bill Morneau acknowledged that he favors a rate that will weaken the black market, if not destroy it altogether. This is one of the government’s main objectives for legalization. “That, as a conclusion, would lead us to say taxation rates have to be low,” Morneau said. “What we’re trying to do is curb the illicit use and organized crime that now exists around it,” Souza echoed.

As Bloomberg indicates, Canada’s growing public favor of marijuana (thanks in great part to Prime Minister Justin Trudeau’s favorable stance) is responsible for the industry’s boom. Early predictions estimate marijuana sales could reach five billion annually by 2021. Likewise, demand for recreational and medical marijuana could reach 575,000 kilograms.

To meet demand, companies are frantically rushing to expand facilities and have had to both stop selling certain strains and limit their clientele. Health Canada, the country’s public health agency, has also committed to speeding up the acceptance process for new licenses.

In order to meet growing demand, the industry will need to move “perfectly” from now until next year, according to PI financial anaylyst Jason Zandberg. “My concerns are that if that is used as an excuse to push the date of recreational legalization back, there’s a danger that it slips into the next election cycle and doesn’t actually happen.”