diff --git a/Documentation/Models/Docbook/Tcar-ug/tcar-ug.docbook b/Documentation/Models/Docbook/Tcar-ug/tcar-ug.docbook
index 40cf028..424e629 100644
--- a/Documentation/Models/Docbook/Tcar-ug/tcar-ug.docbook
+++ b/Documentation/Models/Docbook/Tcar-ug/tcar-ug.docbook
@@ -78,5 +78,6 @@
         between, nor this message so you can remember it. 
     -->
     <!-- Back matter -->
+    <index><title>Index</title></index>
 
 </book>