--- a/ttml10/spec/ttaf1-dfxp.xml	Tue May 07 17:52:09 2013 -0600
+++ b/ttml10/spec/ttaf1-dfxp.xml	Tue May 07 23:24:48 2013 -0600
@@ -9632,8 +9632,8 @@
 <code>#length-integer</code> or
 <code>#length-real</code> features; however, as a concession to existing practice,
 a profile that requires support for <code>#length-positive</code> but does not require
-support for <code>#length-integer</code> or <code>#length-real</code> is recommended
-to be considered as additionally requiring support for <code>#length-real</code>.</p>
+support for <code>#length-integer</code> or <code>#length-real</code> should
+be considered as additionally requiring support for <code>#length-real</code>.</p>
 </note>
 </div3>
 <div3 id="feature-length-real">