diff --git a/docs/src/reference/docbook/preface.xml b/docs/src/reference/docbook/preface.xml
index a6bc3f99..5674382f 100644
--- a/docs/src/reference/docbook/preface.xml
+++ b/docs/src/reference/docbook/preface.xml
@@ -40,7 +40,7 @@
     </listitem>
 
     <listitem>
-      <para>Customizatin of command prompt, banner, shell history file
+      <para>Customization of command prompt, banner, shell history file
       name.</para>
     </listitem>
   </itemizedlist>