diff --git a/README.md b/README.md
index 628f251..e867c26 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ More on each of these categories of things later.
                     systems = {
                         janus = {
                             primary = true;
-                            macAddresses =["AA:BB:CC:DD:EE:FF"];
+                            hw-address = "AA:BB:CC:DD:EE:FF";
                         };
                     };
                 };
@@ -59,7 +59,7 @@ More on each of these categories of things later.
                     systems = {
                         metatron = {
                             primary = true;
-                            macAddresses =["11:22:33:44:55:66"];
+                            hw-address = "11:22:33:44:55:66";
                         };
                     };
                 };
@@ -73,7 +73,7 @@ More on each of these categories of things later.
                     systems = {
                         io = {
                             useDHCP = true;
-                            macAddresses =["DD:DD:DD:DD:DD:DD"];
+                            hw-address = "DD:DD:DD:DD:DD:DD";
                         };
                     };
                 };
@@ -82,14 +82,14 @@ More on each of these categories of things later.
                     systems = {
                         io = {
                             primary = true;
-                            macAddresses =["12:34:56:78:9A:BC"];
+                            hw-address = "12:34:56:78:9A:BC";
                         };
                         europa = {
-                            macAddresses =["FE:DC:BA:98:76:54"];
+                            hw-address = "FE:DC:BA:98:76:54";
                         };
                         deimos = {
                             primary = true;
-                            macAddresses =["AA:AA:AA:AA:AA:AA"];
+                            hw-address = "AA:AA:AA:AA:AA:AA";
                         };
                     };
                 };
@@ -102,15 +102,15 @@ More on each of these categories of things later.
                     systems = {
                         europa = {
                             primary = true;
-                            macAddresses = [ "BB:BB:BB:BB:BB:BB" ];
+                            hw-address = "BB:BB:BB:BB:BB:BB";
                         };
                         phobos = {
                             primary = true;
-                            macAddresses = [ "CC:CC:CC:CC:CC:CC" ];
+                            hw-address = "CC:CC:CC:CC:CC:CC";
                         };
                         terra = {
                             primary = true;
-                            macAddresses = [ "EE:EE:EE:EE:EE:EE" ];
+                            hw-address = "EE:EE:EE:EE:EE:EE";
                         };
                     };
                 };