diff --git a/miniupnpd/miniupnpd.8 b/miniupnpd/miniupnpd.8
index 0073f18..83123c4 100644
--- a/miniupnpd/miniupnpd.8
+++ b/miniupnpd/miniupnpd.8
@@ -8,7 +8,7 @@ miniupnpd \- UPnP Internet Gateway Device Daemon
 .RB [ "\-u \fIuuid" "] [" "\-s \fIserial" "] [" "\-m \fImodel_number" ]
 .RB [ "\-t \fInotify_interval" "] [" "\-P \fIpid_filename" ]
 .RB [ "\-B \fIdown up" "] [" "\-w \fIurl" "] [" "\-r \fIclean_ruleset_interval" ]
-.RB [ "\-A \fIpermission rule" "] [" "\-b \fIBOOTID" ]
+.RB [ "\-A \fIpermission rule" "] [" "\-b \fIBOOTID" "] [" \-1 ]
 .SH DESCRIPTION
 miniupnpd act as a UPnP Internet Gateway Device. It is designed
 to run on the gateway between the internet and a NAT'ed LAN. It provides
@@ -81,6 +81,9 @@ examples :
 .TP
 .BI \-b " BOOTID"
 sets the value of BOOTID.UPNP.ORG SSDP header
+.TP
+.B \-1
+force reporting IGDv1 in rootDesc when compiled as IGDv2 *use with care*
 .SH "SEE ALSO"
 minissdpd(1) miniupnpc(3)
 .SH BUGS
diff --git a/miniupnpd/miniupnpd.c b/miniupnpd/miniupnpd.c
index b291a31..7d32f86 100644
--- a/miniupnpd/miniupnpd.c
+++ b/miniupnpd/miniupnpd.c
@@ -1328,6 +1328,11 @@ init(int argc, char * * argv, struct runtime_vars * v)
 		}
 		else switch(argv[i][1])
 		{
+#ifdef IGD_V2
+		case '1':
+			SETFLAG(FORCEIGDDESCV1MASK);
+			break;
+#endif
 		case 'b':
 			if(i+1 < argc) {
 				upnp_bootid = (unsigned int)strtoul(argv[++i], NULL, 10);
@@ -1742,7 +1747,11 @@ print_usage:
 #ifdef ENABLE_NFQUEUE
                         "\t\t[-Q queue] [-n name]\n"
 #endif
-			"\t\t[-A \"permission rule\"] [-b BOOTID]\n"
+			"\t\t[-A \"permission rule\"] [-b BOOTID]"
+#ifdef IGD_V2
+			" [-1]"
+#endif
+			"\n"
 	        "\nNotes:\n\tThere can be one or several listening_ips.\n"
 	        "\tNotify interval is in seconds. Default is 30 seconds.\n"
 			"\tDefault pid file is '%s'.\n"
@@ -1773,6 +1782,9 @@ print_usage:
 			"\t  \"allow 1024-65535 192.168.1.0/24 1024-65535\"\n"
 			"\t  \"deny 0-65535 0.0.0.0/0 0-65535\"\n"
 			"\t-b sets the value of BOOTID.UPNP.ORG SSDP header\n"
+#ifdef IGD_V2
+			"\t-1 force reporting IGDv1 in rootDesc *use with care*\n"
+#endif
 			"\t-h prints this help and quits.\n"
 	        "", argv[0], pidfilename, DEFAULT_CONFIG);
 	return 1;