diff --git a/mozilla/themes/classic/global/win/contents.rdf b/mozilla/themes/classic/global/win/contents.rdf
index 6f3ae0b7338..e325630097c 100644
--- a/mozilla/themes/classic/global/win/contents.rdf
+++ b/mozilla/themes/classic/global/win/contents.rdf
@@ -22,4 +22,9 @@
       </RDF:Seq>
     </chrome:packages>
   </RDF:Description>
+
+  <!-- Version Information.  State that we work only with major version 1 of this
+       package. -->
+  <RDF:Description about="urn:mozilla:skin:classic/1.0:global"
+#expand     chrome:skinVersion="__MOZILLA_SKIN_VERSION__"/>
 </RDF:RDF>