Jodie Sweetin files for separation with her hubby.

Grown-up sitcom star Jodie Sweetin, famous for playing Stephanie Tanner on "Full House," is separating from her husband.

Sweetin, 26, filed papers for legal separation from hubby Cody Herpin, 31, on Thursday, says People magazine.

The couple married last summer and have a baby daughter together. Sweetin once credited Herpin as helping her get her life back on track after years of methamphetamine addiction, says the mag, adding that the two were planning a reality show together.