(KRON) — A video is going viral of a gorilla trying to attack a man through the glass window at a zoo in Omaha, Nebraska.

The incident happened last week at the Henry Doorly Zoo, according to the Youtube video.

In the video, Kijito, a silverback gorilla, charges straight for the glass window then aggressively jumps at it.

The man, who had his backed turned towards the enclosure with the camera in selfie mood, barely flinches when the gorilla hits the glass.

This is not the Kijito’s first run in with the glass window.

Back in 2015, a gorilla actually broke the glass when he charged at a little girl who was pounding her chest.