diff --git a/systems/charlie/default.nix b/systems/charlie/default.nix
index 212a1f6..8865a0c 100644
--- a/systems/charlie/default.nix
+++ b/systems/charlie/default.nix
@@ -34,7 +34,7 @@ pkgs.callPackage ../../coreboot.nix {
     # payload
     seabios = {
       revision    = true;
-      revision_id = "ef88eeaf052c8a7d28c5f85e790c5e45bcffa45e";
+      revision-id = "ef88eeaf052c8a7d28c5f85e790c5e45bcffa45e";
     };
 
     # blobs
@@ -43,7 +43,7 @@ pkgs.callPackage ../../coreboot.nix {
     have-gbe-bin = true;
     ifd-bin-path = ./blobs/ifd.bin;
      me-bin-path = ./blobs/me.bin;
-    gbe-bin-path = pkgs.callPackage ../../gbe.nix { macAddress = "e5:36:eb:9b:6c:3e"; };
+    gbe-bin-path = pkgs.callPackage ../../gbe.nix { macAddress = "e0:36:eb:9b:6c:3e"; };
 
     # neutralise me
     check-me       = true;