diff --git a/Installation/cmake/modules/CGAL_TweakFindBoost.cmake b/Installation/cmake/modules/CGAL_TweakFindBoost.cmake
index 2683b2b3765..34270f1bded 100644
--- a/Installation/cmake/modules/CGAL_TweakFindBoost.cmake
+++ b/Installation/cmake/modules/CGAL_TweakFindBoost.cmake
@@ -38,6 +38,9 @@ if( NOT CGAL_TweakFindBoost )
     set(CGAL_Boost_USE_STATIC_LIBS_DEFAULT OFF)
   endif()
 
+  option(Boost_DEBUG "Activate the debug messages of the script FindBoost" OFF)
+  mark_as_advanced(Boost_DEBUG)
+
   option(CGAL_Boost_USE_STATIC_LIBS "Link with static Boost libraries" ${CGAL_Boost_USE_STATIC_LIBS_DEFAULT})
   mark_as_advanced(CGAL_Boost_USE_STATIC_LIBS)