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 031e16103..c26c3b9ba 100755
--- a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
+++ b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
@@ -302,7 +302,7 @@ if [ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.lc)" = "" ] || [ $(($(
 			uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
 			ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
 			uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
-		elif [ -z "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.mtu)" ] || [ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.mtu)" = "1500" ]; then
+		elif [ -z "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.mtu)" ]; then
 			[ -n "$serverip" ] && {
 				local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP $serverip)
 				[ -n "$mtu" ] && {