diff --git a/language-snippets.ent b/language-snippets.ent
index 77bde59b74..909894cfec 100644
--- a/language-snippets.ent
+++ b/language-snippets.ent
@@ -249,3 +249,7 @@ are <emphasis>case-sensitive</emphasis></simpara></note>'>
 
 <!ENTITY note.tidy.1only '<note><simpara>This function is only avaliable in
 Tidy 1.0. It became obsolete in Tidy 2.0 and thus has been removed.</simpara></note>'>
+
+<!ENTITY note.tidy.2only '<note><simpara>The optional parameters
+<literal>config_options</literal> and <literal>enconding</literal> were
+added in Tidy 2.0.</simpara></note>'>