diff --git a/docs/ScalabilityAndPerformance.xml b/docs/ScalabilityAndPerformance.xml
index 032a9981e..969d18682 100644
--- a/docs/ScalabilityAndPerformance.xml
+++ b/docs/ScalabilityAndPerformance.xml
@@ -120,7 +120,7 @@
   <section>
     <title>Improving Performance</title>
 
-    <para>Achieving good performance boils down to two things:</para>
+    <para>Achieving good performance boils down to three things:</para>
 
     <itemizedlist>
       <listitem>