The Lionesses of England produced an underwhelming performance in their Group D opener, but edged out debutants Haiti 1-0 in Brisbane, Australia.
It was Georgia Stanways retaken penalty that separated both sides.
The first kick was saved by Haiti goalkeeper, Kerly Theus, but the VAR adjudged her to have stepped off her line too early.
Lowly rated Haiti, ranked 53rd in the world stole the show from their more illustrious opponents and looked very dangerous when they attack the Europeans.
It was 19 year-old Melchie Dumornay that outshined all the players on the pitch with her speed and deft touches. The Haitian ladies left the pitch with their heads held high despite the loss.
The Lionesses, who have lost just once in 33 matches will have to improve their performance when they take on Denmark, who shock China by a lone goal, on Friday as China take on Haiti the same day.