diff --git a/gdk/wayland/gdkwaylandwindow.h b/gdk/wayland/gdkwaylandwindow.h
index 0ce2c31bba..9619a66fcb 100644
--- a/gdk/wayland/gdkwaylandwindow.h
+++ b/gdk/wayland/gdkwaylandwindow.h
@@ -50,6 +50,7 @@ struct wl_surface       *gdk_wayland_window_get_wl_surface       (GdkWindow *win
 GDK_AVAILABLE_IN_ALL
 struct wl_shell_surface *gdk_wayland_window_get_wl_shell_surface (GdkWindow *window);
 
+GDK_AVAILABLE_IN_ALL
 void                     gdk_wayland_window_set_use_custom_surface (GdkWindow *window);
 
 G_END_DECLS