A method of manufacturing a composite component comprising a main body and an integral flange, the method comprising: applying fibre-reinforcement material on a tool having a main body portion and a flange-forming portion (40, 42) to provide a pre-form comprising: a body region and a longitudinally adjacent flange region (212, 214) contiguous with the body region, the body region corresponding to the main body of the component and the flange region corresponding to the integral flange of the component; wherein the pre-form extends generally longitudinally between two longitudinal ends; and wherein a trailing ply (202, 204) of the pre-form extends generally longitudinally between the longitudinal end closest to the flange region (212, 214) and an opposing ply end, the trailing ply (202, 204) having an orientation substantially aligned with the longitudinal direction; causing relative movement between the flange-forming portion (40, 42) and the main body portion so that the flange region (212, 214) of the pre-form deforms to form the flange of the component; wherein the relative movement of the flange-forming portion (40, 42) and the main body portion causes sliding movement between the trailing ply (202, 204) and the flange-forming portion (40, 42), thereby causing a tension force in at least the flange region (212, 214) of the pre-form during forming of the flange. applying fibre-reinforcement material on a tool having a main body portion and a flange-forming portion (40, 42) to provide a pre-form comprising: a body region and a longitudinally adjacent flange region (212, 214) contiguous with the body region, the body region corresponding to the main body of the component and the flange region corresponding to the integral flange of the component; wherein the pre-form extends generally longitudinally between two longitudinal ends; and wherein a trailing ply (202, 204) of the pre-form extends generally longitudinally between the longitudinal end closest to the flange region (212, 214) and an opposing ply end, the trailing ply (202, 204) having an orientation substantially aligned with the longitudinal direction; a body region and a longitudinally adjacent flange region (212, 214) contiguous with the body region, the body region corresponding to the main body of the component and the flange region corresponding to the integral flange of the component; wherein the pre-form extends generally longitudinally between two longitudinal ends; and wherein a trailing ply (202, 204) of the pre-form extends generally longitudinally between the longitudinal end closest to the flange region (212, 214) and an opposing ply end, the trailing ply (202, 204) having an orientation substantially aligned with the longitudinal direction; causing relative movement between the flange-forming portion (40, 42) and the main body portion so that the flange region (212, 214) of the pre-form deforms to form the flange of the component; wherein the relative movement of the flange-forming portion (40, 42) and the main body portion causes sliding movement between the trailing ply (202, 204) and the flange-forming portion (40, 42), thereby causing a tension force in at least the flange region (212, 214) of the pre-form during forming of the flange.