diff --git a/en_US.ISO8859-1/books/handbook/kernelconfig/chapter.sgml b/en_US.ISO8859-1/books/handbook/kernelconfig/chapter.sgml
index 1fdf550fce..75a9816806 100644
--- a/en_US.ISO8859-1/books/handbook/kernelconfig/chapter.sgml
+++ b/en_US.ISO8859-1/books/handbook/kernelconfig/chapter.sgml
@@ -358,9 +358,11 @@
     </indexterm>
 
     <para>If you have <emphasis>not</emphasis> upgraded your source
-      tree in any way (you have not run <application>CVSup</application>, 
+      tree in any way since the last time you successfully completed
+      a <maketarget>buildworld</maketarget>-<maketarget>installworld</maketarget> cycle
+      (you have not run <application>CVSup</application>,
       <application>CTM</application>, or used 
-      <application>anoncvs</application>), then you should use the 
+      <application>anoncvs</application>), then it is safe to use the
       <command>config</command>, <maketarget>make depend</maketarget>,
       <command>make</command>, <maketarget>make install</maketarget> sequence.
     </para>