diff --git a/README.md b/README.md
index 2ce3557705580a0197ea97e15ad663635b820107..73bf618da6c5425be6d7bed7fa5a8c0788a211fd 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Let us denote by SRC_DIR the root directory of the gitlab repository.
 
    * Boost, with components system and filesystem
    * Intel TBB
-   * Qt5
+   * Qt5 (for the `-draw` option)
 
 
 For CGAL, we have added it as a git submodule. Just run: