diff --git a/machines/john-endesktop/configuration.nix b/machines/john-endesktop/configuration.nix
index 49768df..7826f6c 100644
--- a/machines/john-endesktop/configuration.nix
+++ b/machines/john-endesktop/configuration.nix
@@ -153,7 +153,7 @@ with lib;
   # Replaces the broken k8s deployment with native NixOS service
   services.harmonia = {
     enable = true;
-    signKeyPath = "/etc/harmonia/signing-key.private";
+    signKeyPaths = [ "/etc/harmonia/signing-key.private" ];
     settings = {
       bind = "[::]:5000";
     };