diff --git a/docs/ScalabilityAndPerformance.xml b/docs/ScalabilityAndPerformance.xml
index 47750f8ee..89128e79d 100644
--- a/docs/ScalabilityAndPerformance.xml
+++ b/docs/ScalabilityAndPerformance.xml
@@ -172,7 +172,8 @@
     <emphasis role="bold">N</emphasis> * <emphasis role="bold">M</emphasis>
     iptables ACCEPT rules.</para>
 
-    <para>On the other hand, consider the following:</para>
+    <para>The number of rules can be reduced significantly by using an <ulink
+    url="Actions.html">action</ulink>. Consider the following:</para>
 
     <blockquote>
       <para><filename>/etc/shorewall/actions</filename>:</para>