Abstract: The invention relates to the field of rocket engine propulsion chambers, and more specifically to a propulsion chamber (2) for a liquid propellant rocket engine, the propulsion chamber comprising at least an inside wall (10) made of metal, an outside covering (11) made of organic matrix composite material, and a cooling circuit (12) arranged between the outside covering and the inside wall (10). The propulsion chamber (2) further comprises at least a first axial endpiece (17, 18) secured to the metal inside wall and presenting at least one radial protrusion (19, 20) received in a concave recess in an inside face of the outside covering (11). This concave recess is situated axially between first and second belts (21, 22; 23, 24) of reinforcing fibers oriented substantially circumferentially in said outside covering (11) in such a manner as to take up forces associated with inside pressure and thrust.