Willy Wonka would be so disappointed.

Imagine a magic land where the streets are paved with chocolate. As sweet as it sounds, this actually turned out to be motorists' worst nightmare.

A highway in Poland had to be shut down after a tanker truck full of liquid chocolate overturned and spilled its contents onto the road. About 12 tons of chocolate ended up coating the pavement, according to the Washington Post.

To make matters worse, clean-up crews had a difficult time dealing the mess as the chocolate quickly cooled on the ground. While crews worked, traffic was blocked between the towns of Wrzesnia and Slupca in Western Poland, the Associated Press reported. Senior brigadier Bogdan Kowalski told the AP that “cooling chocolate is worse than snow.”

The crew, using hot water to melt the chocolate and wash it away, didn’t seem to mind the job. “It’s been a long time since I’ve seen so many smiles on the faces of emergency rescue folks and police officers at the scene of an accident,” Marlena Kukawka, Slupca’s police spokeswoman, told The New York Times.

It’s not clear what caused the accident. The driver was taken to the hospital with a broken arm, and no other injuries were reported.