The longtime legal chief of Tupperware is stepping down as the once-iconic company, best-known for its plastic, air-tight containers, fights for survival.

Karen Sheehan joined Tupperware as deputy general counsel in December 2014 and took the legal reins two years later. The Orlando, Florida-based company said in a U.S. Securities and Exchange Commission filing that she will leave Sept. 30, but did not provide a reason.