A wind turbine blade for a rotor of a wind turbine, said rotor comprising a hub, from which the blade extends substantially in a radial direction when mounted to the hub, the wind turbine blade including a shell structure of a fibre-reinforced composite material comprising fibres embedded in a polymer matrix, the blade having a longitudinal direction (r) with a tip end and a root end and a transverse direction as well as having a blade length, the blade further comprising: - a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length (c) extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift, wherein the profiled contour comprises: - a root region comprising a root end face, - an airfoil region having a lift-generating profile furthest away from the hub, and - optionally a transition region between the root region and the airfoil region, wherein - the root region comprises a ring-shaped cross section with an outer surface and an inner surface, wherein the root region comprises a plurality of elongated fastening members provided with fastening means and embedded mutually spaced apart in the fibre-reinforced polymer so as to substantially follow a circumference of the root region and allow access from the outside to the fastening means used for mounting the blade to the hub, - the fastening members comprise a first end arranged at the root end face, a second end opposite the first end thereof and an outer periphery, characterised in that - the fastening members comprise a substantially oval cross-sectional profile with a first dimension (d 1) oriented in a radial direction of the ring-shaped cross-section being larger than a second dimension (d 2) oriented in a circumferential direction of the ring shaped cross-section. - a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length (c) extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift, wherein the profiled contour comprises: - a root region comprising a root end face, - an airfoil region having a lift-generating profile furthest away from the hub, and - optionally a transition region between the root region and the airfoil region, wherein - the root region comprises a ring-shaped cross section with an outer surface and an inner surface, wherein the root region comprises a plurality of elongated fastening members provided with fastening means and embedded mutually spaced apart in the fibre-reinforced polymer so as to substantially follow a circumference of the root region and allow access from the outside to the fastening means used for mounting the blade to the hub, - the fastening members comprise a first end arranged at the root end face, a second end opposite the first end thereof and an outer periphery, characterised in that - the fastening members comprise a substantially oval cross-sectional profile with a first dimension (d 1) oriented in a radial direction of the ring-shaped cross-section being larger than a second dimension (d 2) oriented in a circumferential direction of the ring shaped cross-section.