diff --git a/functions/strings.xml b/functions/strings.xml
index 9ef2ebd392..84221f030e 100644
--- a/functions/strings.xml
+++ b/functions/strings.xml
@@ -1,5 +1,5 @@
 <?xml encoding="iso-8859-1"?>
-<!-- $Revision: 1.120 $ -->
+<!-- $Revision: 1.121 $ -->
  <reference id="ref.strings">
   <title>String functions</title>
   <titleabbrev>Strings</titleabbrev>
@@ -3558,7 +3558,7 @@ $rest = substr("abcdef", 1, -1); // returns "bcde"
     <funcsynopsis>
      <funcprototype>
       <funcdef>int <function>substr_count</function></funcdef>
-      <paramdef>string <parameter>haystrack</parameter></paramdef>
+      <paramdef>string <parameter>haystack</parameter></paramdef>
       <paramdef>string <parameter>needle</parameter></paramdef>
      </funcprototype>
     </funcsynopsis>