Parents will do what it takes to help their children succeed, but it might be toys that are limiting girls’ visions of their careers.

An Oregon State University study shows that girls who play with Barbie dolls see fewer options for their futures when compared to kids who don’t play with Mattel’s longstanding greatest hit. The research is a part of a larger study called “Sex Roles.”

In the experiment, researchers randomly assigned girls between the ages of 4 and 7 to play with one of three dolls: a fashion Barbie in a dress and high heels, a doctor Barbie in a lab coat with a stethoscope or a Mrs. Potato Head with all the fixings.

After some playtime, the girls were asked about ten potential occupations and if they could do them when they grew up. Boys were asked about the same careers. Boys and the girls who played with Mrs. Potato Head felt capable of doing more jobs on the list than girls who played with Barbie. It doesn’t seem to matter how Barbie is dressed.

“This finding suggests that just outfitting Barbie professionally may not be enough to outweigh the other messages girls are learning through play with Barbies,” says Aurora M. Sherman, an associate professor in OSU’s School of Psychological Science.

That doesn’t mean your daughter, granddaughter or niece can only play with Mrs. Potato Head — researchers recommend having a variety of toys on hand.

This story originally appeared on Oregon Public Broadcasting.