Doc fix.
diff --git a/doc/documentation-main.html b/doc/documentation-main.html
index eb83697..8cee92a 100644
--- a/doc/documentation-main.html
+++ b/doc/documentation-main.html
@@ -1406,7 +1406,7 @@
 signOut("uk")
 </pre>
 
-For this ordering, you can use the XML attribute <tt>order-by-instances</tt>. This attribute is valid either on &lt;suite&gt; or &lt;test&gt;:
+For this ordering, you can use the XML attribute <tt>group-by-instances</tt>. This attribute is valid either on &lt;suite&gt; or &lt;test&gt;:
 
 <pre class="brush: xml">
   &lt;suite name="Factory" group-by-instances="true"&gt;