diff --git a/appendices/reserved.xml b/appendices/reserved.xml
index 6a37d8695b..40f5dd3b85 100755
--- a/appendices/reserved.xml
+++ b/appendices/reserved.xml
@@ -1,4 +1,4 @@
-<appendix id="reserved_words">
+<appendix id="reserved">
  <title>PHP reserved words</title>
  <para>
   Here is the list of PHP reserved words and usual constants.