diff --git a/Control/CxxUtils/CMakeLists.txt b/Control/CxxUtils/CMakeLists.txt
index 2eb847267572a4caf3b5e150ef7d1fb92194c9e7..d8a7ce88d457e95c820bf0a83fd007236bddfe4e 100644
--- a/Control/CxxUtils/CMakeLists.txt
+++ b/Control/CxxUtils/CMakeLists.txt
@@ -4,7 +4,7 @@
 atlas_subdir( CxxUtils )
 
 # External dependencies:
-find_package( Boost COMPONENTS regex thread system timer unit_test_framework )
+find_package( Boost COMPONENTS regex timer unit_test_framework )
 find_package( TBB )
 
 # The main library of the package: