A roll-down gate collapsed onto a sidewalk in front of a Brooklyn storefront Wednesday afternoon, injuring one person, an FDNY spokesman said.

A passer-by suffered minor injuries when the gate detached from the top of the first-floor storefront at 2831 Church Ave. and came crashing down, taking part of the building with it.

Video posted by CBS NY showed the debris strewn across the Crown Heights sidewalk.

The victim suffered minor injuries but refused medical attention at the scene.