diff --git a/chrome/content/zotero/about.xul b/chrome/content/zotero/about.xul
index 54d6979fd..248255015 100644
--- a/chrome/content/zotero/about.xul
+++ b/chrome/content/zotero/about.xul
@@ -52,8 +52,9 @@
 				</vbox>
 				<label class="subhead" value="&zotero.about.additionalSoftware;"/>
 				<vbox class="subcontent">
-					<label class="zotero-text-link" href="http://www.famfamfam.com/lab/icons/silk/" value="Silk icons (by Mark James)"/>
 					<label class="zotero-text-link" href="http://p.yusukekamiyamane.com/" value="Fugue icons (by Yusuke Kamiyamane)"/>
+					<label class="zotero-text-link" href="http://www.davidashen.net/rnv.html" value="RNV (CSL validation)"/>
+					<label class="zotero-text-link" href="http://www.famfamfam.com/lab/icons/silk/" value="Silk icons (by Mark James)"/>
 					<label class="zotero-text-link" href="http://simile.mit.edu/timeline/" value="SIMILE Project (Timeline)"/>
 					<label class="zotero-text-link" href="http://www.w3.org/2005/ajar/tab" value="Tabulator (RDF parser)"/>
 					<label class="zotero-text-link" href="http://tango.freedesktop.org/Tango_Desktop_Project" value="Tango Desktop Project (pref icons)"/>