Liam Hemsworth has given Miley Cyrus an ultimatum: Quit smoking or they're done, as reported by HollywoodLife.com on Wednesday.

Although reports have claimed that the 23-year-old singer has worked her ways to lay low on her bad habits for the "Hunger Games" hunk, there's one more activity that the "Wrecking Ball" singer is not willing to give up just yet - smoking marijuana.

The couple has rekindled their romance only recently, but Hemsworth already has a problem with Cyrus. A HollywoodLife.com source spilled the beans on the actor admitting that he thinks his fiancée smokes too much and it's apparently driving him mad. The said source also added that the two have been fighting because he is forcing her to quit smoking weed, and he "can't believe how often she gets high". "Every day Liam comes home and the entire house reeks of weed. He's so annoyed," the insider said.

Cyrus, who is known for her love for the plant, has always been open about her usage and even takes it to her Instagram account to tell the world about her "4:20" conquests. During her hosting stint at the MTV Video Music Awards, Cyrus declared how much she loves marijuana and even offered a joint to the crowd.

"My song is kinda sorta about the love of marijuana, the love of humankind, I brought a little joint if anyone would like any. Anyone?" she said. Basing on how much she expresses her adoration for weed, the ultimatum that her fiancé has given her is indeed a big deal for her because obviously, smoking has become a huge part of her routine.

Hemsworth and Cyrus originally got engaged back in 2013 but called it off the next year. The two got back together in early 2016. They currently live together with their dogs which they consider as their family.