diff --git a/gdk/wayland/gdkdevice-wayland.c b/gdk/wayland/gdkdevice-wayland.c
index 0c850147f4..0e1ac1d283 100644
--- a/gdk/wayland/gdkdevice-wayland.c
+++ b/gdk/wayland/gdkdevice-wayland.c
@@ -1934,6 +1934,7 @@ keyboard_handle_leave (void               *data,
   g_object_unref (seat->keyboard_focus);
   seat->keyboard_focus = NULL;
   seat->repeat_key = 0;
+  seat->key_modifiers = 0;
 
   GDK_SEAT_NOTE (seat, EVENTS,
             g_message ("focus out, seat %p surface %p",