Index: tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml
===================================================================
--- tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml	(revision 1061295)
+++ tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml	(working copy)
@@ -569,12 +569,15 @@
 
   <mime-type type="application/vnd.apple.keynote">
     <root-XML localName="presentation" namespaceURI="http://developer.apple.com/namespaces/keynote2" />
+    <sub-class-of type="application/vnd.apple.iwork" />
   </mime-type>
   <mime-type type="application/vnd.apple.pages">
     <root-XML localName="document" namespaceURI="http://developer.apple.com/namespaces/sl" />
+    <sub-class-of type="application/vnd.apple.iwork" />
   </mime-type>
   <mime-type type="application/vnd.apple.numbers">
     <root-XML localName="document" namespaceURI="http://developer.apple.com/namespaces/ls" />
+    <sub-class-of type="application/vnd.apple.iwork" />
   </mime-type>
   <mime-type type="application/vnd.arastra.swi">
     <glob pattern="*.swi"/>