diff --git a/ChangeLog b/ChangeLog
index 013df5b37..e4fd0e25b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2008-12-12  Behdad Esfahbod  <behdad@gnome.org>
+
+	* glib/guniprop.c: Improve g_unichar_iswide_cjk() docs.
+
 2008-12-07  Matthias Clasen  <mclasen@redhat.com>
 
 	Bug 508021 – Add support for the CRIS and CRISv32 architectures
diff --git a/glib/guniprop.c b/glib/guniprop.c
index 57928e518..8a28513ed 100644
--- a/glib/guniprop.c
+++ b/glib/guniprop.c
@@ -479,6 +479,10 @@ g_unichar_iswide (gunichar c)
  * the converse is not necessarily true.  See the
  * <ulink url="http://www.unicode.org/reports/tr11/">Unicode Standard
  * Annex #11</ulink> for details.
+ *
+ * If a character passes the g_unichar_iswide() test then it will also pass
+ * this test, but not the other way around.  Note that some characters may
+ * pas both this test and g_unichar_iszerowidth().
  * 
  * Return value: %TRUE if the character is wide in legacy East Asian locales
  *