diff --git a/bin/.bin/randomMac b/bin/.bin/randomMac
index 5a6d89f1..04eccd4a 100755
--- a/bin/.bin/randomMac
+++ b/bin/.bin/randomMac
@@ -10,7 +10,7 @@ if [ "$1" != "" ]; then
   if [ "$(ip link show | grep $1)" != "" ]; then
     if [ ! -f ~/mac-address-$1.bck ]; then
       echo "storing original information in ~/mac-address-$1.bck"
-      ip link show > ~/mac-address-$1.bck
+      ip link show $1 > ~/mac-address-$1.bck
     fi
     sudo ip link set dev $1 down
     sudo ip link set dev $1 address $(openssl rand -hex 6 | sed 's/\(..\)/\1:/g; s/.$//')