diff --git a/Detector/CMakeLists.txt b/Detector/CMakeLists.txt
index be45fff6cab99071fd9915a4452980e4a22b9340..57e6f2ce1389dc6690edf864c20b8862b81313f5 100644
--- a/Detector/CMakeLists.txt
+++ b/Detector/CMakeLists.txt
@@ -6,3 +6,4 @@ add_subdirectory(DetEcalMatrix)
 add_subdirectory(DetInterface)
 add_subdirectory(DetSegmentation)
 add_subdirectory(GeomSvc)
+add_subdirectory(Identifier)