More money does mean more problems, especially when it comes to marriages, according to a new report from Brigham Young University.

Researchers at the Utah-based college surveyed more than 1,700 married couples across the country. Couples who say money is not important were found to score 10 to 15 percent better on marriage stability and relationship quality than those who were materialistic.

“Couples where both spouses are materialistic were worse off on nearly every measure we looked at,” said lead study author Jason Carroll, a BYU professor of family life, in a statement. “There is a pervasive pattern in the data of eroding communication, poor conflict resolution and low responsiveness to each other.”

One in five couples in the study admitted a strong love of money. Though those couples tended to be more financially prosperous, money was a major source of conflict in their relations. Couples where both partners were materialistic were in poorer shape than couples where just one partner was materialistic.

Study findings were published in the Journal of Couple & Relationship Therapy.