diff --git a/reference/strings/functions/sha1.xml b/reference/strings/functions/sha1.xml
index 04a501bca6..f3143f8104 100644
--- a/reference/strings/functions/sha1.xml
+++ b/reference/strings/functions/sha1.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.1 $ -->
+<!-- $Revision: 1.2 $ -->
   <refentry id="function.sha1">
    <refnamediv>
     <refname>sha1</refname>
@@ -13,11 +13,12 @@
      </methodsynopsis>
     <simpara>
      Calculates the sha1 hash of <parameter>str</parameter> using the
-     <ulink url="&url.rfc;rfc1321.html">US Secure Hash Algorithm 1</ulink>,
+     <ulink url="&url.rfc;rfc3174.html">US Secure Hash Algorithm 1</ulink>,
      and returns that hash. The hash is a 40-character hexadecimal number.
     </simpara>
     <simpara>
-     See also <function>crc32</function> and <function>md5</function>
+     See also <function>sha1_file</function>, <function>crc32</function>,
+     and <function>md5</function> 
     </simpara>
    </refsect1>
   </refentry>