Index: /trunk/doc/manual/en_US/user_AdvancedTopics.xml
===================================================================
--- /trunk/doc/manual/en_US/user_AdvancedTopics.xml	(revision 42328)
+++ /trunk/doc/manual/en_US/user_AdvancedTopics.xml	(revision 42329)
@@ -1549,5 +1549,5 @@
       <para>Once installed and started, the VirtualBox Guest Additions will
         try to synchronize the guest time with the host time. This can be
-        prevented by forbiding the guest service from reading the host
+        prevented by forbidding the guest service from reading the host
         clock:</para>
 
