diff --git a/map-agent/files/lib/wifi/traffic_separation b/map-agent/files/lib/wifi/traffic_separation
index 0621ce1e9..96a11d0ec 100755
--- a/map-agent/files/lib/wifi/traffic_separation
+++ b/map-agent/files/lib/wifi/traffic_separation
@@ -37,7 +37,11 @@ EOF
 			uci -q set network.${name}.device="$AL_BRIDGE"
 			uci -q set network.${name}.vlan="$vid"
 
-			[ "${vid}" = "${PRIMARY_VID}" ] && self_flags="untagged pvid"
+			[ "${vid}" = "${PRIMARY_VID}" ] && {
+				self_flags="untagged pvid"
+				tag=":*"
+			}
+
 			uci -q set network.${name}.flags="${self_flags}"
 			uci -q set network.${name}.local='1'