AMITYVILLE — A cancer-stricken 6-year-old boy whose family was displaced by Hurricane Sandy is back in his Long Island home after it was rebuilt by volunteers.

The house in Amityville now has a new, extra bedroom so little Steven Heckman doesn’t have to share space with two sisters while undergoing chemotherapy.

His tearful mother, Danielle Heckman, told reporters she was so excited she was hyperventilating as the family moved in Saturday.

A wall in Steven’s new bedroom was painted with his favorite character — Indiana Jones.

The boy was diagnosed with leukemia last summer.

Then came the storm, flooding the family’s home and forcing them to move in with Steven’s grandmother.

The boy’s mother says all she wants to do now is tuck her kids into bed — at their rebuilt home.