diff --git a/docs/reference/gtk/tmpl/gtkenums.sgml b/docs/reference/gtk/tmpl/gtkenums.sgml
index ec4c89bc5d..3b72290bd4 100644
--- a/docs/reference/gtk/tmpl/gtkenums.sgml
+++ b/docs/reference/gtk/tmpl/gtkenums.sgml
@@ -433,12 +433,12 @@ other, rather than vertically stacked
 
 <!-- ##### ENUM GtkUpdateType ##### -->
 <para>
-
+Used by #GtkRange to control the policy for notifying value changes.
 </para>
 
-@GTK_UPDATE_CONTINUOUS: 
-@GTK_UPDATE_DISCONTINUOUS: 
-@GTK_UPDATE_DELAYED: 
+@GTK_UPDATE_CONTINUOUS: Notify updates whenever the value changed
+@GTK_UPDATE_DISCONTINUOUS: Notify updates when the mouse button has been released
+@GTK_UPDATE_DELAYED: Space out updates with a small timeout
 
 <!-- ##### ENUM GtkVisibility ##### -->
 <para>