Marilyn Manson canceled nine tour dates Sunday in the wake of an accident that knocked him unconscious on a New York City stage, according to a report.

The “Dope Show” singer postponed October concerts in cities including Boston, Chicago, Houston and Toronto, according to Deadline.com.

His “Heaven Upside Down” tour is expected to resume on Oct. 15 in Grand Prarie, Texas — and he will likely reschedule the canceled performances, the entertainment website reported.

Manson was injured Saturday night when stage scenery fell on him at the Hammerstein Ballroom at West 34th Street and Eighth Avenue.

He tried to climb a stage replica of two guns and part of the structure fell and knocked him out, cutting the performance short, sources said Saturday.

He will spend time recuperating from his injuries in his Los Angeles home, a rep told Deadline.

The tour kicked off in Maryland on Sept. 27.