Chance the Rapper is donating his Grammy Award for best rap album to Chicago’s DuSable Museum of African American History.

According to the Chicago Times, the rapper’s announcement at the museum’s gala Saturday surprised officials. He said during his speech that he wants to make the museum “a staple of African American history” and received a standing ovation.

The best rap album Grammy is one of three Chance won in February, including best new artist. His album Coloring Book was the first streaming-only album to win the award. He also won best rap performance.