diff --git a/Doc/preface.xml b/Doc/preface.xml
index b33be9023887c5769f64dec19185b9b2bfe1f407..367026ec80ae1d535600327c37958ee2e04bdeac 100644
--- a/Doc/preface.xml
+++ b/Doc/preface.xml
@@ -78,10 +78,10 @@
       help</productname> zip archive</glossterm>
 
       <glossdef>
-        <para><link
-        xlink:href="https://freedocs.mi.hdm-stuttgart.de/webhelp/lectures.zip">Zipped
-        archive</link> of all previously mentioned resources for offline
-        usage. Does contain the following offline versions:</para>
+        <para>Self contained <link
+        xlink:href="https://freedocs.mi.hdm-stuttgart.de/webhelp/lectures.zip">zip
+        archive</link> of previously mentioned resources for offline usage.
+        Does contain the following offline links:</para>
 
         <itemizedlist>
           <listitem>