diff --git a/livesupport/products/gLiveSupport/etc/gLiveSupport.xml b/livesupport/products/gLiveSupport/etc/gLiveSupport.xml
index ad55921aa..e0f53cf3c 100644
--- a/livesupport/products/gLiveSupport/etc/gLiveSupport.xml
+++ b/livesupport/products/gLiveSupport/etc/gLiveSupport.xml
@@ -92,6 +92,7 @@
 <!ATTLIST metadataType  dcName            NMTOKEN     #REQUIRED >
 <!ATTLIST metadataType  id3Tag            CDATA       #IMPLIED  >
 <!ATTLIST metadataType  localizationKey   NMTOKEN     #REQUIRED >
+<!ATTLIST metadataType  tab               NMTOKEN     #IMPLIED  >
 ]>
 
 <gLiveSupport>
diff --git a/livesupport/products/gLiveSupport/etc/gLiveSupport.xml.template b/livesupport/products/gLiveSupport/etc/gLiveSupport.xml.template
index 5e99b2fb3..b19f3d08e 100644
--- a/livesupport/products/gLiveSupport/etc/gLiveSupport.xml.template
+++ b/livesupport/products/gLiveSupport/etc/gLiveSupport.xml.template
@@ -92,6 +92,7 @@
 <!ATTLIST metadataType  dcName            NMTOKEN     #REQUIRED >
 <!ATTLIST metadataType  id3Tag            CDATA       #IMPLIED  >
 <!ATTLIST metadataType  localizationKey   NMTOKEN     #REQUIRED >
+<!ATTLIST metadataType  tab               NMTOKEN     #IMPLIED  >
 ]>
 
 <gLiveSupport>
diff --git a/livesupport/products/gLiveSupport/etc/gLiveSupport.xml.user-template b/livesupport/products/gLiveSupport/etc/gLiveSupport.xml.user-template
index d52d1b83e..5f9b2638d 100644
--- a/livesupport/products/gLiveSupport/etc/gLiveSupport.xml.user-template
+++ b/livesupport/products/gLiveSupport/etc/gLiveSupport.xml.user-template
@@ -92,6 +92,7 @@
 <!ATTLIST metadataType  dcName            NMTOKEN     #REQUIRED >
 <!ATTLIST metadataType  id3Tag            CDATA       #IMPLIED  >
 <!ATTLIST metadataType  localizationKey   NMTOKEN     #REQUIRED >
+<!ATTLIST metadataType  tab               NMTOKEN     #IMPLIED  >
 ]>
 
 <gLiveSupport>