diff --git a/ecal/core/CMakeLists.txt b/ecal/core/CMakeLists.txt
index 558419d689..7663e03aa6 100644
--- a/ecal/core/CMakeLists.txt
+++ b/ecal/core/CMakeLists.txt
@@ -284,6 +284,8 @@ if (ECAL_CORE_REGISTRATION)
       src/registration/ecal_registration_provider.h
       src/registration/ecal_registration_receiver.cpp
       src/registration/ecal_registration_receiver.h
+      src/registration/ecal_registration_receiver_udp.cpp
+      src/registration/ecal_registration_receiver_udp.h
       src/registration/ecal_registration_sender.h
       src/registration/ecal_registration_sender_udp.cpp
       src/registration/ecal_registration_sender_udp.h