diff --git a/tools/run/with_azas_ros_env.sh b/tools/run/with_azas_ros_env.sh
index a792123..8856f00 100755
--- a/tools/run/with_azas_ros_env.sh
+++ b/tools/run/with_azas_ros_env.sh
@@ -20,7 +20,7 @@ fi
 set -u
 
 export ROS_DOMAIN_ID="${AZAS_ROS_DOMAIN_ID:-9}"
-export ROS_LOCALHOST_ONLY="${AZAS_ROS_LOCALHOST_ONLY:-${ROS_LOCALHOST_ONLY:-1}}"
+export ROS_LOCALHOST_ONLY="${AZAS_ROS_LOCALHOST_ONLY:-1}"
 export FASTDDS_BUILTIN_TRANSPORTS="${FASTDDS_BUILTIN_TRANSPORTS:-UDPv4}"
 export MPLCONFIGDIR="${MPLCONFIGDIR:-/tmp/azas_mpl_config}"