diff --git a/gdk/wayland/gdkdisplay-wayland.c b/gdk/wayland/gdkdisplay-wayland.c
index 6d9a50e8ab..6df25cff06 100644
--- a/gdk/wayland/gdkdisplay-wayland.c
+++ b/gdk/wayland/gdkdisplay-wayland.c
@@ -193,11 +193,13 @@ gdk_registry_handle_global (void               *data,
       output =
         wl_registry_bind (display_wayland->wl_registry, id, &wl_output_interface, MIN (version, 2));
       _gdk_wayland_screen_add_output (display_wayland->screen, id, output, MIN (version, 2));
+      wl_display_roundtrip (display_wayland->wl_display);
     }
   else if (strcmp (interface, "wl_seat") == 0)
     {
       seat = wl_registry_bind (display_wayland->wl_registry, id, &wl_seat_interface, MIN (version, 4));
       _gdk_wayland_device_manager_add_seat (gdk_display->device_manager, id, seat);
+      wl_display_roundtrip (display_wayland->wl_display);
     }
   else if (strcmp (interface, "wl_data_device_manager") == 0)
     {