diff --git a/reference/nis/constants.xml b/reference/nis/constants.xml
index 94cc13fb60..e8affc667b 100644
--- a/reference/nis/constants.xml
+++ b/reference/nis/constants.xml
@@ -1,9 +1,20 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
 <section id="nis.constants">
  &reftitle.constants;
  &extension.constants;
  <variablelist>
+  <varlistentry>
+   <term>
+    <constant>YPERR_ACCESS</constant> 
+    (<type>integer</type>)
+   </term>
+   <listitem>
+    <simpara>
+     access violation (this has only been added recently and is only available from PECL CVS for now)
+    </simpara>
+   </listitem>
+  </varlistentry>
   <varlistentry>
    <term>
     <constant>YPERR_BADARGS</constant> 
@@ -44,7 +55,7 @@
    </term>
    <listitem>
     <simpara>
-     4 - no such map in server's domain
+     cannot bind to server in this domain
     </simpara>
    </listitem>
   </varlistentry>
@@ -55,7 +66,7 @@
    </term>
    <listitem>
     <simpara>
-     5 - no such key in map
+     no such key in map
     </simpara>
    </listitem>
   </varlistentry>
@@ -66,7 +77,7 @@
    </term>
    <listitem>
     <simpara>
-     
+     no such map in server's domain
     </simpara>
    </listitem>
   </varlistentry>
@@ -110,7 +121,7 @@
    </term>
    <listitem>
     <simpara>
-     
+     resource allocation failure 
     </simpara>
    </listitem>
   </varlistentry>
@@ -143,7 +154,7 @@
    </term>
    <listitem>
     <simpara>
-     
+     internal yp server or client error 
     </simpara>
    </listitem>
   </varlistentry>