diff --git a/manpages/shorewall-accounting.xml b/manpages/shorewall-accounting.xml
index 1317b6cad..9bfa90959 100644
--- a/manpages/shorewall-accounting.xml
+++ b/manpages/shorewall-accounting.xml
@@ -76,6 +76,12 @@
                 <emphasis>chain</emphasis>. The <emphasis>chain</emphasis> may
                 not exceed 29 characters in length and may be composed of
                 letters, digits, dash ('-') and underscore ('_').</para>
+
+                <warning>
+                  <para>To avoid problems, we recomment that chain names that
+                  you create should begin with a capital letter and contain a
+                  digit, a dash ('-') or an underscore ('_').</para>
+                </warning>
               </listitem>
             </varlistentry>
 
@@ -172,6 +178,12 @@
           <emphasis>chain</emphasis> will be created if it doesn't already
           exist. The <emphasis>chain</emphasis> may not exceed 29 characters
           in length.</para>
+
+          <warning>
+            <para>To avoid problems, we recomment that chain names that you
+            create should begin with a capital letter and contain a digit, a
+            dash ('-') or an underscore ('_').</para>
+          </warning>
         </listitem>
       </varlistentry>
 
diff --git a/manpages6/shorewall6-accounting.xml b/manpages6/shorewall6-accounting.xml
index c9dcd7d64..fa45d7480 100644
--- a/manpages6/shorewall6-accounting.xml
+++ b/manpages6/shorewall6-accounting.xml
@@ -76,6 +76,12 @@
                 <emphasis>chain</emphasis>. The <emphasis>chain</emphasis> may
                 not exceed 29 characters in length and may be composed of
                 letters, digits, dash ('-') and underscore ('_').</para>
+
+                <warning>
+                  <para>To avoid problems, we recomment that chain names that
+                  you create should begin with a capital letter and contain a
+                  digit, a dash ('-') or an underscore ('_').</para>
+                </warning>
               </listitem>
             </varlistentry>
 
@@ -115,6 +121,12 @@
           <emphasis>chain</emphasis> will be created if it doesn't already
           exist. The <emphasis>chain</emphasis> may not exceed 29 characters
           in length.</para>
+
+          <warning>
+            <para>To avoid problems, we recomment that chain names that you
+            create should begin with a capital letter and contain a digit, a
+            dash ('-') or an underscore ('_').</para>
+          </warning>
         </listitem>
       </varlistentry>