If there’s one place in the United States that would know the Salvadoran national anthem, you’d think it would be Washington, DC. Not only is it the nation’s capital and diplomatic hub, but it also has a large Salvadoran community. But when El Salvador and Argentina lined up for the anthems for a friendly at FedEx Field in front of nearly 59,000 people, the anthem that was supposed to be El Salvador’s definitely was not.

One by one, the players slowly dropped their hands from over their hearts as they realized the mistake and the large number of Salvadoran supporters in the crowd loudly booed as the incorrect song played to its conclusion. For the sake of comparison, here’s El Salvador’s real anthem:

https://www.youtube.com/embed/lMEbDU9XUPY

This isn’t the first dumb mistake FedEx Field has made while hosting a friendly, though. Before Man United’s match against Inter last summer, they announced that the English club play their home matches at “Old Traddord” rather than Old Trafford.

https://twitter.com/SoccerInsider/status/494249113845002240

Sadly, things did not get much better for El Salvador fans after the anthem mix-up.

https://twitter.com/SoccerInsider/status/581950521537376256

Video via Deadspin