diff --git a/gtk/gtkshow.c b/gtk/gtkshow.c
index a20d53674c..31f7a340f0 100644
--- a/gtk/gtkshow.c
+++ b/gtk/gtkshow.c
@@ -44,6 +44,8 @@
  * Returns: %TRUE on success, %FALSE on error
  *
  * Since: 2.14
+ *
+ * Deprecated: 3.22: Use gtk_show_uri_on_window() instead.
  */
 gboolean
 gtk_show_uri (GdkScreen    *screen,