diff --git a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/CMakeLists.txt b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/CMakeLists.txt
index e74250bee26..b73e7e414e2 100644
--- a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/CMakeLists.txt
+++ b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/CMakeLists.txt
@@ -11,7 +11,7 @@ endif()
 find_package(CGAL COMPONENTS Core Qt5 )
 include( ${CGAL_USE_FILE} )
 
-find_package( Qt5 QUIET COMPONENTS Gui )
+find_package( Qt5 QUIET COMPONENTS Gui Widgets)
 
 if ( CGAL_FOUND AND CGAL_Qt5_FOUND AND Qt5_FOUND AND CGAL_Core_FOUND)
   include_directories( ./ )