In a viral video, a small dog showed off a heartbreaking habit he's developed as he struggled to adjust to his new home.

The post, which was shared on the TikTok page @barkandmeoww, shows the three-year-old dog named Gizmo sitting outside the door and staring into space.

As his new owner explained, in his old home, Gizmo spent most of the day outside.

Now, he often sits alone in his new house and doesn't know what to do with himself.

Dogs Dog can't wait to tell mom all about her super fun day at the park: "gurlll lemme tell you the tea!"

"Poor Gizmo.. he is still adjusting to his new home," the clip's on-screen text explains. "Sometimes I find him just sitting here."

The video quickly went viral, and many TikTokers took to the comments to share some advice about the tough situation.

"He will be ok. I have a rescue who was in a kennel for the first 7 months of his life," one user said. "He has been at our house for a year now, it took sometime but he is doing very well now."

"My rescue stayed under the dining room table for at least a week. He'll come around," another said.