diff --git a/functions/math.xml b/functions/math.xml
index 3a3f6f0701..1acfb6da52 100644
--- a/functions/math.xml
+++ b/functions/math.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.66 $ -->
+<!-- $Revision: 1.67 $ -->
  <reference id="ref.math">
   <title>Mathematical Functions</title>
   <titleabbrev>Math</titleabbrev>
@@ -1238,7 +1238,7 @@ echo pow(-1, 5.5); // error
      </para>
     </warning>
     <para> 
-     See also <function>exp</function>.
+     See also <function>exp</function> and <function>sqrt</function>.
     </para>
    </refsect1>
   </refentry>