A wind turbine blade for a rotor of a wind turbine having a substantially horizontal rotor shaft, said rotor comprising a hub , from which the wind turbine blade extends substantially in a radial direction when mounted to the hub, the wind turbine blade having a longitudinal direction with a tip end and a root end and a transverse direction, the wind turbine 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 extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift, wherein - a surface mounted device is attached to a surface of the wind turbine blade , wherein - the surface mounted device is attached to the surface of the wind turbine blade via at least a first attachment part, which is connected to a part of the surface mounted device, characterised in that - the first attachment part comprises: - an outer attachment part providing a first bonding connection between the surface mounted device and the surface of the wind turbine blade, wherein the first bonding connection is an elastic bond, and - an inner attachment part providing a second bonding connection between the surface mounted device and the surface of the wind turbine blade , wherein the second bonding connection has a structural bond, - wherein the outer attachment part surrounds the inner attachment part. - 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 extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift, wherein - a surface mounted device is attached to a surface of the wind turbine blade , wherein - the surface mounted device is attached to the surface of the wind turbine blade via at least a first attachment part, which is connected to a part of the surface mounted device, characterised in that - a surface mounted device is attached to a surface of the wind turbine blade , wherein - the surface mounted device is attached to the surface of the wind turbine blade via at least a first attachment part, which is connected to a part of the surface mounted device, characterised in that - the first attachment part comprises: - an outer attachment part providing a first bonding connection between the surface mounted device and the surface of the wind turbine blade, wherein the first bonding connection is an elastic bond, and - an inner attachment part providing a second bonding connection between the surface mounted device and the surface of the wind turbine blade , wherein the second bonding connection has a structural bond, - an outer attachment part providing a first bonding connection between the surface mounted device and the surface of the wind turbine blade, wherein the first bonding connection is an elastic bond, and - an inner attachment part providing a second bonding connection between the surface mounted device and the surface of the wind turbine blade , wherein the second bonding connection has a structural bond, - wherein the outer attachment part surrounds the inner attachment part. <EOS>