diff --git a/system/machine/EDaaS/configuration.nix b/system/machine/EDaaS/configuration.nix
index 600d786..32ba7f9 100644
--- a/system/machine/EDaaS/configuration.nix
+++ b/system/machine/EDaaS/configuration.nix
@@ -43,6 +43,11 @@
     autoPrune.enable = true;
   };
 
+  # Match the flake's nixosConfigurations attribute name so `nh os switch`
+  # (which selects by the local hostname) resolves without an explicit
+  # -H/--hostname flag. The default would otherwise be the stock NixOS "nixos".
+  networking.hostName = "emmathorpe-edaas";
+
   networking.resolvconf.enable = false;
 
   # Drop the systemd-ssh-proxy Include from the generated /etc/ssh/ssh_config.