Lionel Messi's son, Mateo, accidentally celebrated when he thought Barcelona's shot against the side-netting - prompting hilarious reactions from both his father and his strike partner Luis Suarez.
With their two key men absent through injury, Barca beat Betis 5-2 at the Camp Nou - goals from Griezmann (2), Perez, Alba and Vidal ensuring the Blaugrana got back to winning ways following the 1-0 defeat to Athletic Bilbao in last week's opening game of the season.
Suarez and Messi were supporting Barca from the stands throughout the 90 minutes and the Argentine's middle child got a bit too ahead of him.
A clip doing the rounds shows Mateo nearly jump out of his seat - - leading to smiles and laughs all round in the Messi/Suarez clan.
Initially it was thought that Mateo was celebrating one of Real Betis' two goals in the game but the video is in fact from a missed chance for the home side.
The little lad has also become a bit of a meme for his reaction to Barca's fourth goal.