diff --git a/html/align.html b/html/align.html
index f795693ebc183d640c1d5a12ffc86000a45347f7..74842fc34e45ca0bd67ccbc586aec46532567626 100644
--- a/html/align.html
+++ b/html/align.html
@@ -88,7 +88,7 @@ If you are not familiar with CVS, its is time to document yourself.
   not included in the CVS repositories). It is also very usefull to
   have <a ref="http://ant.apache.org">Ant</a>.</p>
 
-<h1>Assembling</h1>
+<h2>Assembling</h2>
 
 <p>A good way of setting your environment (from the CVS archive) for
   developing is to unzip the OWL-API binary distribution and put the