diff --git a/mock/cpp_mock_scenarios/CMakeLists.txt b/mock/cpp_mock_scenarios/CMakeLists.txt
index 883da343c49..97deecc3193 100644
--- a/mock/cpp_mock_scenarios/CMakeLists.txt
+++ b/mock/cpp_mock_scenarios/CMakeLists.txt
@@ -56,9 +56,8 @@ if(BUILD_CPP_MOCK_SCENARIOS)
   add_subdirectory(src/spawn)
   add_subdirectory(src/speed_planning)
   add_subdirectory(src/synchronized_action)
-  add_subdirectory(src/traffic_sink)
   add_subdirectory(src/traffic_source)
-  # add_subdirectory(src/respawn_ego)
+  add_subdirectory(src/respawn_ego)
 
 endif()