Emma Watson ran into a red carpet wardrobe malfunction during the star-studded London premiere of the sixth Harry Potter film on Wednesday.

Emma — who will be heading Stateside for her freshman year at New York City’s Columbia University in the fall — was left shamefaced and soaked with rain after a strong gust of wind blew her full-length silver wrap gown open, exposing her panties for all to see.

Emma Watson reprises her role as Hermione Granger in Harry Potter and the Half-Blood Prince, opening later this month.