diff --git a/Manuals/Docbook/Licenses/Gfdl/section-11.docbook b/Manuals/Docbook/Licenses/Gfdl/section-11.docbook
index 1d1ccec..c4dc316 100644
--- a/Manuals/Docbook/Licenses/Gfdl/section-11.docbook
+++ b/Manuals/Docbook/Licenses/Gfdl/section-11.docbook
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<section>
+<section id="licenses-gfdl-section-11" xreflabel="Future Revisions of this License">
 
     <title>Future Revisions of this License</title>