diff --git a/transmission/start.sh b/transmission/start.sh
index c30fa021d5..df04acc732 100755
--- a/transmission/start.sh
+++ b/transmission/start.sh
@@ -3,7 +3,7 @@
 # Source our persisted env variables from container startup
 . /etc/transmission/environment-variables.sh
 
-tun0ip=$(ifconfig tun0 | sed -n '2 p' | awk '{print $2}' | cut -d: -f2)
+tun0ip=$4
 echo "Updating TRANSMISSION_BIND_ADDRESS_IPV4 to tun0 ip: ${tun0ip}"
 export TRANSMISSION_BIND_ADDRESS_IPV4=${tun0ip}