diff --git a/Manuals/Docbook/Licenses/Gfdl/section-12.docbook b/Manuals/Docbook/Licenses/Gfdl/section-12.docbook
index 6a9258f..87bcbbb 100644
--- a/Manuals/Docbook/Licenses/Gfdl/section-12.docbook
+++ b/Manuals/Docbook/Licenses/Gfdl/section-12.docbook
@@ -1,5 +1,5 @@
 <?xmll version="1.0"?>
-<section>
+<section id="licenses-gfdl-section-12" xreflabel="How to use this License for your documents">
 
     <title>How to use this License for your documents</title>