Emmy Rossum

After a year-and-a-half marriage, Emmy Rossum's husband, music executive Justin Siegel, has filed for a divorce.

Check out photos of Rossum

Seigel filed for the divorce on Sept. 25 in the Los Angeles Superior Court citing irreconcilable differences, according to People. He also seeks spousal support from Rossum, 23. The two have no children.

While a date of separation was not listed, a source tells the magazine the two separated in August.

Calls to Rossum's rep were not immediately returned to TVGuide.com.