diff --git a/servers/hydra.nix b/servers/hydra.nix
index b4a49cb..bcfadb1 100644
--- a/servers/hydra.nix
+++ b/servers/hydra.nix
@@ -8,6 +8,8 @@ in
     ./utils/acme-http-client.nix
   ];
 
+  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
+
   services = {
     hydra = {
       enable = true;
@@ -39,7 +41,10 @@ in
       {
         hostName = "localhost";
         protocol = null;
-        system = "x86_64-linux";
+        systems = [
+          "x86_64-linux"
+          "aarch64-linux"
+        ];
         supportedFeatures = [
           "kvm"
           "nixos-test"