diff --git a/general/package/datalink/files/telemetry b/general/package/datalink/files/telemetry
index c587d93b..f19409d6 100755
--- a/general/package/datalink/files/telemetry
+++ b/general/package/datalink/files/telemetry
@@ -41,7 +41,7 @@ case "$1" in
 		else
 			if [ "$router" -eq 2  ]; then
 				msposd --channels "$channels" --master "$serial" --baudrate "$baud"  \
-					--out 127.0.0.1:$port_tx -osd -r "$fps" --ahi "$ahi" > /dev/null &
+					--out 127.0.0.1:$(($port_tx + 1)) -osd -r "$fps" --ahi "$ahi" > /dev/null &
 			else
 				mavfwd --channels "$channels" --master "$serial" --baudrate "$baud" -p 100 -t -a "$aggregate" \
 					--out 127.0.0.1:$port_tx --in 127.0.0.1:$port_rx > /dev/null &