diff --git a/gdk/wayland/gdkdisplay-wayland.c b/gdk/wayland/gdkdisplay-wayland.c
index 4a5f633369..4f70a3c833 100644
--- a/gdk/wayland/gdkdisplay-wayland.c
+++ b/gdk/wayland/gdkdisplay-wayland.c
@@ -296,7 +296,7 @@ wl_shm_format (void          *data,
 {
   GDK_NOTE (MISC,
             char buf[10];
-            g_message ("supported pixel format %s", get_format_name (format, buf));
+            g_message ("supported pixel format %s (0x%X)", get_format_name (format, buf), (guint) format);
             );
 }