A wind turbine rotor blade comprising: - a rotor blade root for connection of the rotor blade to a rotor hub, - an inner blade portion which extends from the rotor blade root in the direction of a longitudinal axis of the rotor blade, - a trailing edge segment having at least one trailing edge segment portion (22a-22c) for increasing the profile depth of the rotor blade in the region of the inner blade portion, and - at least a first and a second securing portion for securing the at least one trailing edge segment portion (22a-22c) to the inner blade portion, wherein the first securing portion is arranged at a predetermined spacing from the second securing portion in the direction of the longitudinal axis of the rotor blade, and wherein the at least one trailing edge segment portion (22a-22c) of the trailing edge segment is secured via the at least one first and second securing portion to the inner blade portion, characterized in that loads occurring at the inner blade portion are transmitted in point form by way of the first and second securing portions to the at least one trailing edge segment portion (22a-22c) of the trailing edge segment, wherein the at least one trailing edge segment portion (22a-22c) has in the first and second securing portions a first and a second reinforcing rib for reinforcing the at least one trailing edge segment portion (22a-22c) and the first and second reinforcing ribs are adapted for connection to the inner blade portion, and wherein a first and a second connecting rib is arranged at the inner blade portion in the first and second securing portion and the first and second connecting ribs are adapted for connection to the at least one trailing edge segment portion (22a-22c). - a rotor blade root for connection of the rotor blade to a rotor hub, - an inner blade portion which extends from the rotor blade root in the direction of a longitudinal axis of the rotor blade, - a trailing edge segment having at least one trailing edge segment portion (22a-22c) for increasing the profile depth of the rotor blade in the region of the inner blade portion, and - at least a first and a second securing portion for securing the at least one trailing edge segment portion (22a-22c) to the inner blade portion, wherein the first securing portion is arranged at a predetermined spacing from the second securing portion in the direction of the longitudinal axis of the rotor blade, and wherein the at least one trailing edge segment portion (22a-22c) of the trailing edge segment is secured via the at least one first and second securing portion to the inner blade portion, characterized in that loads occurring at the inner blade portion are transmitted in point form by way of the first and second securing portions to the at least one trailing edge segment portion (22a-22c) of the trailing edge segment, wherein the at least one trailing edge segment portion (22a-22c) has in the first and second securing portions a first and a second reinforcing rib for reinforcing the at least one trailing edge segment portion (22a-22c) and the first and second reinforcing ribs are adapted for connection to the inner blade portion, and wherein a first and a second connecting rib is arranged at the inner blade portion in the first and second securing portion and the first and second connecting ribs are adapted for connection to the at least one trailing edge segment portion (22a-22c).