Boeing’s largest union rejected a tentative labor contract on Wednesday by a wide margin, extending a damaging strike and adding to the mounting financial problems facing the company, which hours earlier had reported a $6.

Before it can get on the long path to recovery, the aerospace giant needs to get workers back in its factories.

The union representing workers on strike against troubled aerospace firm Boeing (BA) on Thursday reminded its members that they need to stick together in order to get what they want.