An assembly according to some embodiments of the disclosure includes an enclosure having a housing and door hingedly attached to the housing and a door stop mechanism which holds the door in an open position. The mechanism includes a link member pivotally connected to the door and to the housing. The link member has an elongated slot which extends along a portion of the link member. The slot has a linear portion and an enlarged opening at an end thereof which is offset from the linear portion. When the door is opened, a fastener, which is either mounted to the housing or to the door, slides along the slot until the fastener is positioned in the enlarged opening to hold the door open.