diff --git a/src/test/gtk/makefile b/src/test/gtk/makefile
index 7ad52bc3..7dadcf8a 100644
--- a/src/test/gtk/makefile
+++ b/src/test/gtk/makefile
@@ -9,6 +9,7 @@ all:
 	$(VOC) -s Gdk.Mod
 	$(VOC) -s Gtk.Mod
 	$(VOC) -s Glade.Mod
+	$(VOC) -s handlers.Mod
 	$(VOC) -m HelloWorld.Mod
 
 test0: