diff --git a/html/cgi-bin/ovpnmain.cgi b/html/cgi-bin/ovpnmain.cgi
index 21bd5cea6..ce899e731 100644
--- a/html/cgi-bin/ovpnmain.cgi
+++ b/html/cgi-bin/ovpnmain.cgi
@@ -2793,7 +2793,7 @@ if ($cgiparams{'ACTION'} eq "edit"){
     <table width='100%' border='0'>
     <tr><form method='post'>
 	<td width='10%' nowrap='nowrap'>$Lang::tr{'ccd name'}:</td><td><input type='TEXT' name='ccdname' value='$cgiparams{'ccdname'}' /></td>
-	<td width='8%'>$Lang::tr{'ccd subnet'}:</td><td><input type='TEXT' name='ccdsubnet' value='$cgiparams{'ccdsubnet'}' readonly /></td></tr>
+	<td width='8%'>$Lang::tr{'ccd subnet'}:</td><td><input type='TEXT' name='ccdsubnet' value='$cgiparams{'ccdsubnet'}' readonly='readonly' /></td></tr>
 	<tr><td colspan='4' align='right'><hr><input type='submit' value='$Lang::tr{'save'}' /><input type='hidden' name='ACTION' value='editsave'/>
 	<input type='hidden' name='ccdname' value='$cgiparams{'ccdname'}'/><input type='submit' value='$Lang::tr{'cancel'}' />
 	</td></tr>