diff --git a/gtk/gtkeventcontrollerscroll.c b/gtk/gtkeventcontrollerscroll.c
index 91831f404f..9e90b54dd7 100644
--- a/gtk/gtkeventcontrollerscroll.c
+++ b/gtk/gtkeventcontrollerscroll.c
@@ -455,6 +455,9 @@ gtk_event_controller_scroll_init (GtkEventControllerScroll *scroll)
 {
   scroll->scroll_history = g_array_new (FALSE, FALSE,
                                         sizeof (ScrollHistoryElem));
+  gtk_event_controller_set_event_mask (GTK_EVENT_CONTROLLER (scroll),
+                                       GDK_SCROLL_MASK |
+                                       GDK_SMOOTH_SCROLL_MASK);
 }
 
 /**