diff --git a/reference/filter/filters.xml b/reference/filter/filters.xml
index 2c519a5ec9..caad464fcc 100644
--- a/reference/filter/filters.xml
+++ b/reference/filter/filters.xml
@@ -606,10 +606,16 @@ filter.default_flags = 0
         <constant>FILTER_VALIDATE_IP</constant>
        </entry>
        <entry>
+        <para>
         Fails validation for the following reserved IPv4 ranges:
         <literal>0.0.0.0/8</literal>, <literal>169.254.0.0/16</literal>,
-        <literal>192.0.2.0/24</literal> and <literal>224.0.0.0/4</literal>.
-        This flag does not apply to IPv6 addresses.
+        <literal>127.0.0.0/8</literal> and <literal>240.0.0.0/4</literal>.
+        </para>
+        <para>
+         Fails validation for the following reserved IPv6 ranges:
+         <literal>::1/128</literal>, <literal>::/128</literal>,
+         <literal>::ffff:0:0/96</literal> and <literal>fe80::/10</literal>.
+        </para>
        </entry>
       </row>
       <row>