Index: /trunk/doc/manual/en_US/user_GuestAdditions.xml
===================================================================
--- /trunk/doc/manual/en_US/user_GuestAdditions.xml	(revision 64956)
+++ /trunk/doc/manual/en_US/user_GuestAdditions.xml	(revision 64957)
@@ -360,5 +360,5 @@
         <title>Unattended Installation</title>
 
-        <para>As a prerequisite for avoid popups during performing an
+        <para>As a prerequisite for avoid popups while performing an
         unattended installation of the VirtualBox Guest Additions, the code
         signing certificates used to sign the drivers needs to be installed in
