diff --git a/reference/strings/functions/count-chars.xml b/reference/strings/functions/count-chars.xml
index 4b74a567c5..497eebbd92 100644
--- a/reference/strings/functions/count-chars.xml
+++ b/reference/strings/functions/count-chars.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.10 $ -->
+<!-- $Revision: 1.11 $ -->
 <refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.count-chars">
  <refnamediv>
   <refname>count_chars</refname>
@@ -69,12 +69,12 @@
     </listitem>
     <listitem>
      <simpara>
-      3 - a string containing all used byte-values is returned.
+      3 - a string containing all unique characters is returned.
      </simpara>
     </listitem>
     <listitem>
      <simpara>
-      4 - a string containing all not used byte-values is returned.
+      4 - a string containing all not used characters is returned.
      </simpara>
     </listitem>
    </itemizedlist>