About 4,000 workers represented by the United Auto Workers (UAW) reached an agreement with Volvo Group-owned Mack Trucks just before midnight Eastern Standard Time (0400 GMT) on Sunday, the union and the company said.

The UAW is currently in the third week of an ongoing strike against the Detroit 3 automakers, General Motors (GM.N), Ford and Chrysler parent Stellantis (STLAM.MI).

Should Mack workers have gone on strike, it could have strained the UAW’s limited strike fund.