A washing machine including a cabinet, a tub placed within the cabinet, a wash tub located within the tub to receive laundry therein, an element receiving unit in which elements are received, the element receiving unit being coupled to one side of the cabinet, a coupling panel provided at the element receiving unit so as to be coupled to the cabinet, a receiving panel provided at the cabinet so as to receive at least a portion of the coupling panel, a first holder and a second holder formed at the coupling panel, and a first receiving hole and a second receiving hole perforated in the receiving panel to receive the first holder and the second holder respectively therein. The coupling panel is pivotally rotated after the first holder is positioned into the first receiving hole, causing the second holder to be fitted into the second receiving hole.