diff --git a/Tracking/Acts/ActsEvent/CMakeLists.txt b/Tracking/Acts/ActsEvent/CMakeLists.txt
index cdaa3e8625e4cea5d0e5ccfbf9b3f7c51ffb6a09..6118001a7677016b86a3dd846e864d25e96c9b61 100644
--- a/Tracking/Acts/ActsEvent/CMakeLists.txt
+++ b/Tracking/Acts/ActsEvent/CMakeLists.txt
@@ -32,7 +32,7 @@ atlas_add_test( MultiTrajectoryBasic_test
 				LINK_LIBRARIES TestTools ActsEventLib
 				POST_EXEC_SCRIPT nopost.sh)
 
-# atlas_add_test( MultiTrajectorySG_test
-# 				SOURCES test/MultiTrajectorySG_test.cxx
-# 				LINK_LIBRARIES TestTools ActsEventLib
-# 				POST_EXEC_SCRIPT nopost.sh)
+atlas_add_test( MultiTrajectorySG_test
+				SOURCES test/MultiTrajectorySG_test.cxx
+ 				LINK_LIBRARIES TestTools ActsEventLib
+ 				POST_EXEC_SCRIPT nopost.sh)