diff --git a/reference/strings/functions/substr-count.xml b/reference/strings/functions/substr-count.xml
index 4afdd0a4ed..a2c3ddb33c 100644
--- a/reference/strings/functions/substr-count.xml
+++ b/reference/strings/functions/substr-count.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.5 $ -->
+<!-- $Revision: 1.6 $ -->
 <!-- splitted from ./en/functions/strings.xml, last change in rev 1.27 -->
   <refentry id="function.substr-count">
    <refnamediv>
@@ -16,7 +16,8 @@
     <para>
      <function>substr_count</function> returns the number of times the
      <parameter>needle</parameter> substring occurs in the
-     <parameter>haystack</parameter> string.
+     <parameter>haystack</parameter> string. Please note that
+     <parameter>needle</parameter> is case sensitive.
     </para>
 
     <para>