diff --git a/en_US.ISO8859-1/books/faq/book.sgml b/en_US.ISO8859-1/books/faq/book.sgml
index 80bdfedd94..11bd412f61 100644
--- a/en_US.ISO8859-1/books/faq/book.sgml
+++ b/en_US.ISO8859-1/books/faq/book.sgml
@@ -10936,8 +10936,8 @@ panic: page fault</programlisting>
     </qandaset>
   </chapter>
 
-  <chapter id="acknowledgements">
-    <title>Acknowledgements</title>
+  <chapter id="acknowledgments">
+    <title>Acknowledgments</title>
 
     <para>This innocent little Frequently Asked Questions document has
       been written, rewritten, edited, folded, spindled, mutilated,