diff --git a/files/www/cgi-bin/setup b/files/www/cgi-bin/setup
index 5092a689..f371fbef 100755
--- a/files/www/cgi-bin/setup
+++ b/files/www/cgi-bin/setup
@@ -1097,6 +1097,7 @@ if dmz_mode ~= 0 then
     hidden[#hidden + 1] = "<input type=hidden name=dmz_dhcp_start value='" .. dmz_dhcp_start .. "'>"
 
     html.print("<tr><td><nobr>DHCP End</nobr></td><td>" .. dmz_dhcp_end .. "</td></tr>")
+    hidden[#hidden + 1] = "<input type=hidden name=dmz_dhcp_end value='" .. dmz_dhcp_end .. "'>"
 
     hidden[#hidden + 1] = "<input type=hidden name=lan_ip     value='" .. lan_ip .."'>"
     hidden[#hidden + 1] = "<input type=hidden name=lan_mask   value='" .. lan_mask .."'>"