diff --git a/docs/traffic_shaping.xml b/docs/traffic_shaping.xml
index 12989a0ed..14f56fede 100644
--- a/docs/traffic_shaping.xml
+++ b/docs/traffic_shaping.xml
@@ -1153,7 +1153,7 @@ ip link set ifb0 up</command></programlisting>
     <para>Entries in <filename>/etc/shorewall/tcrules</filename> have no
     effect on shaping traffic through an IFB. To allow classification of such
     traffic, the /etc/shorewall/tcfilters file has been added. Entries in that
-    file create <ulink url="http://b42.dz/notes/u32_classifier/">u32
+    file create <ulink url="http://b42.cz/notes/u32_classifier/">u32
     classification rules</ulink>.</para>
 
     <section id="tcfilters">