@@ -449,8 +449,10 @@ function add_baremetal_node() {

        "$mac_1" \

        | grep ' id ' | get_field 2 )

     [ $? -eq 0 ] || [ "$id" ] || die $LINENO "Error adding baremetal node"

-    id2=$(nova baremetal-interface-add "$id" "$mac_2" )

-    [ $? -eq 0 ] || [ "$id2" ] || die $LINENO "Error adding interface to barmetal node $id"

+    if [ -n "$mac_2" ]; then

+        id2=$(nova baremetal-interface-add "$id" "$mac_2" )

+        [ $? -eq 0 ] || [ "$id2" ] || die $LINENO "Error adding interface to barmetal node $id"

+    fi

 }