diff --git a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
index 72ea623eb..796975058 100755
--- a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
+++ b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
@@ -598,8 +598,8 @@ fi
 	#[ -z "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.latency_max)" ] && uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.latency_max="$OMR_TRACKER_LATENCY"
 	#[ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.latency_max)" -lt "$OMR_TRACKER_LATENCY" ] && uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.latency_max="$OMR_TRACKER_LATENCY"
 	if [ "$multipath_config" = "on" ] && [ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.multipath)" != "master" ] && ([ "$(uci -q get openmptcprouter.settings.master)" = "dynamic" ] || (([ "$(uci -q get openmptcprouter.settings.master)" = "change" ] || [ "$(uci -q get openmptcprouter.settings.master)" = "" ]) && [ "$(uci -q get openmptcprouter.settings.master_lcintf | grep $OMR_TRACKER_INTERFACE)" = "" ])); then
-		masterintf="$(uci -q show network | grep multipath=\'master\' | cut -d'.' -f2)"
-		[ -z "$masterintf" ] && masterintf="$(uci -q show openmptcprouter | grep multipath=\'master\' | cut -d'.' -f2)"
+		masterintf="$(uci -q show openmptcprouter | grep -m 1 multipath=\'master\' | cut -d'.' -f2)"
+		[ -z "$masterintf" ] && masterintf="$(uci -q show network | grep -m 1 multipath=\'master\' | cut -d'.' -f2)"
 		masterlatency="$(uci -q get openmptcprouter.$masterintf.latency | tr -d '\n')"
 		if [ -z "$masterlatency" ] || [ "$(uci -q get openmptcprouter.$masterintf.state)" = "down" ]; then
 			masterlatency=1000