diff --git a/rc.test b/rc.test
index 8b84905..55fe142 100755
--- a/rc.test
+++ b/rc.test
@@ -2,19 +2,19 @@
 . ${RC_ROUTER_HARNESS}/etc/rc.conf
 
 echo "Which nic?"
-read nic
+read _nic
 
-nic=`echo $nic | sed -e 's/\./_/g'`
+_nic=`echo $_nic | sed -e 's/\./_/g'`
 
 echo "V6 net is: ${secret_ip6_net}"
 
-eval echo "ifconfig_${nic}: \${ifconfig_${nic}}"
-eval echo "ifconfig_${nic}_ipv6: \${ifconfig_${nic}_ipv6}"
-eval echo "ifconfig_${nic}_alias0: \${ifconfig_${nic}_alias0}"
-eval echo "ifconfig_${nic}_alias1: \${ifconfig_${nic}_alias1}"
-eval echo "ifconfig_${nic}_alias2: \${ifconfig_${nic}_alias2}"
-eval echo "ifconfig_${nic}_alias3: \${ifconfig_${nic}_alias3}"
-eval echo "ifconfig_${nic}_alias4: \${ifconfig_${nic}_alias4}"
+eval echo "ifconfig_${_nic}: \${ifconfig_${_nic}}"
+eval echo "ifconfig_${_nic}_ipv6: \${ifconfig_${_nic}_ipv6}"
+eval echo "ifconfig_${_nic}_alias0: \${ifconfig_${_nic}_alias0}"
+eval echo "ifconfig_${_nic}_alias1: \${ifconfig_${_nic}_alias1}"
+eval echo "ifconfig_${_nic}_alias2: \${ifconfig_${_nic}_alias2}"
+eval echo "ifconfig_${_nic}_alias3: \${ifconfig_${_nic}_alias3}"
+eval echo "ifconfig_${_nic}_alias4: \${ifconfig_${_nic}_alias4}"
 echo "rtadvd_interfaces: ${rtadvd_interfaces}"
 echo "wireguard_interfaces: ${wireguard_interfaces}"
 echo "cloned_interfaces: ${cloned_interfaces}"