diff --git a/en_US.ISO8859-1/books/porters-handbook/appendices/chapter.xml b/en_US.ISO8859-1/books/porters-handbook/appendices/chapter.xml
index 97fd84ce4a..e0d0d4a0ee 100644
--- a/en_US.ISO8859-1/books/porters-handbook/appendices/chapter.xml
+++ b/en_US.ISO8859-1/books/porters-handbook/appendices/chapter.xml
@@ -6,7 +6,7 @@
 -->
 
 <chapter xmlns="http://docbook.org/ns/docbook" xmlns:xlink=
-  "http://www.w3.org/1999/xlink" version="5.0" xml:id="appendencies">
+  "http://www.w3.org/1999/xlink" version="5.0" xml:id="appendices">
 
   <title>Appendices</title>