A would-be home invader armed with what appeared to be a knife and gun was scared off by a family’s pit bull in Los Angeles.

Home surveillance footage captured the hoodie-clad suspect stalking the streets of Tujunga when he approached a front door and tried to break in early Wednesday, KTLA reported.

That’s when the suspect ran into Ace, the owners’ pit bull or pit bull mix, and quickly fled.

“We have no idea who this man is,” the anonymous homeowner told KTLA, saying Ace stood guard and sent the suspect running.