A technique for aggregating Minimization of Drive Test, MDT, measurements is disclosed. In a first method aspect, the method is performed by a component of an Operation And Maintenance, OAM, system and comprises the steps of receiving an activation request configuring MDT measurements for a plurality of User Equipments, UEs, and requesting a Performance Measurement, PM, activating the MDT measurements for the UEs, receiving the MDT measurements from the UEs, and aggregating the MDT measurements to obtain the requested PM measurement. In a second method aspect, the method is performed in another component of the OAM system and comprises the steps of generating the activation request configuring MDT measurements for the plurality of UEs, and requesting the PM, and transmitting the activation request towards the component of the OAM system.