diff --git a/Doc/course.xml b/Doc/course.xml
index e22f1ecd8663e673e6f869b1da3646ce608941aa..d92946daf58aec91dcee61000418676c21c51d60 100644
--- a/Doc/course.xml
+++ b/Doc/course.xml
@@ -97,21 +97,21 @@
             xlink:href="https://www.virtualbox.org">Virtualbox</uri> image is
             available in the following formats: <glosslist>
                 <glossentry>
-                  <glossterm>compressed zip archive:</glossterm>
+                  <glossterm>Split <command>rar</command> archive (100 MB
+                  chunks):</glossterm>
 
                   <glossdef>
                     <para><uri
-                    xlink:href="ftp://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/lubuntu.zip">ftp://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/lubuntu.zip</uri></para>
+                    xlink:href="ftp://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/Rarformat">ftp://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/Rarformat</uri></para>
                   </glossdef>
                 </glossentry>
 
                 <glossentry>
-                  <glossterm>Split <command>rar</command> archive (100 MB
-                  chunks):</glossterm>
+                  <glossterm>compressed zip archive:</glossterm>
 
                   <glossdef>
                     <para><uri
-                    xlink:href="ftp://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/Rarformat">ftp://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/Rarformat</uri></para>
+                    xlink:href="ftp://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/lubuntu.zip">ftp://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/lubuntu.zip</uri></para>
                   </glossdef>
                 </glossentry>