Facebook decided to join in by giving users logging in on Sunday morning a 'Happy Independence Day' message.
Nothing wrong with that, you might think - except that the social media network managed to get the colours of the flag upside down - red on top, and blue on the bottom, rather than blue on top and red on the bottom.
And while that's not a hanging mistake, the real faux pas turns out to be that the Philippines actually does use an upside down flag - but only when they're at war.
@facebook please correct this. PH flag 🇵🇭 must be blue over red. Red on top symbolizes war. #RP612fic #Pilipinas pic.twitter.com/qqlKqJv5Ly
According to Philippine law, the flag is only displayed with red on top during wartime.
Facebook took the banner down after people started pointing out they hadn't realised a war had started overnight.
A representative for the company told the Philippine Star: "This was unintentional, and we’re sorry."
We care deeply about the community in the Philippines and, in an attempt to connect people on Independence Day, we made a mistake.