diff --git a/AABB_tree/include/CGAL/internal/AABB_tree/AABB_drawing_traits.h b/AABB_tree/include/CGAL/internal/AABB_tree/AABB_drawing_traits.h
index 4fa88b4f5a2..948e0cf41e0 100644
--- a/AABB_tree/include/CGAL/internal/AABB_tree/AABB_drawing_traits.h
+++ b/AABB_tree/include/CGAL/internal/AABB_tree/AABB_drawing_traits.h
@@ -21,6 +21,7 @@
 #define CGAL_AABB_DRAWING_TRAITS_H
 
 #include <CGAL/Bbox_3.h>
+#include <CGAL/gl.h>
 
 namespace CGAL {