--- src/network.subr.orig	2015-11-19 16:53:25.509440000 +0700
+++ src/network.subr	2015-11-20 18:47:36.914275000 +0700
@@ -1330,7 +1330,7 @@
 			_list="$_list $ifn"
 		fi
 		tmpargs=$(get_if_var $ifn gifconfig_IF)
-		eval ifconfig_${ifn}=\"tunnel \$tmpargs\"
+		eval ifconfig_${ifn}=\"\$ifconfig_${ifn} tunnel \$tmpargs\"
 	done
 	if [ -n "${_list# }" ]; then
 		echo "Created clone interfaces: ${_list# }."