--- a/rdf-concepts/index.html	Thu Nov 17 13:44:48 2011 +0000
+++ b/rdf-concepts/index.html	Thu Nov 17 15:43:58 2011 +0000
@@ -850,7 +850,8 @@
     <a>language tag</a> did not have a <a>datatype IRI</a>, and
     <a title="simple literal">simple literals</a> could appear
     directly in the abstract syntax. Simple literals and literals with a
-    language tag were collectively known as <dfn>plain literals</dfn>.</p>
+    language tag were collectively known as
+    <dfn title="plain literal">plain literals</dfn>.</p>
 
       <p class="note">Literals in which the lexical form begins with a
       composing character (as defined by [[CHARMOD]]) are allowed however they may cause