A battery bay of a hearing device should be better protected against unwanted opening. A housing for a hearing device is therefore provided with: a battery bay that is mounted on the housing and can be moved into an open position as well as a closed position; a projection that is permanently attached to the housing, and a securing element to prevent a movement of the battery bay. The securing element is supported on the battery bay and can be pivoted between a secured position and an unsecured position. The securing element also engages behind the projection in the secured position and the closed position of the battery bay so that the battery bay cannot be moved into the open position. The securing element has a recess in which, in the secured position, a tool can be held to move the securing element into the unsecured position.