diff --git a/gtkknob.c b/gtkknob.c
index ddc0231..f0549e4 100644
--- a/gtkknob.c
+++ b/gtkknob.c
@@ -153,6 +153,7 @@ gtk_knob_init (GtkKnob *knob) {
     gtk_widget_set_has_window(GTK_WIDGET(knob), FALSE);
     gtk_widget_set_hexpand(GTK_WIDGET(knob), FALSE);
     gtk_widget_set_vexpand(GTK_WIDGET(knob), FALSE);
+    gtk_widget_add_events(GTK_WIDGET(knob), GDK_SCROLL_MASK);
 }