Index: freedesktop.org.xml.in
===================================================================
RCS file: /cvs/mime/shared-mime-info/freedesktop.org.xml.in,v
retrieving revision 1.70
diff -u -r1.70 freedesktop.org.xml.in
--- freedesktop.org.xml.in	26 Aug 2005 15:35:25 -0000	1.70
+++ freedesktop.org.xml.in	3 Sep 2005 19:00:37 -0000
@@ -69,6 +69,7 @@
     </magic>
   </mime-type>
   <mime-type type="application/mathematica">
+    <sub-class-of type="text/plain"/>
     <_comment>Mathematica Notebook</_comment>
     <glob pattern="*.nb" />
     <magic priority="50">