diff --git a/config/profiles/builder.nix b/config/profiles/builder.nix
index 896f3da..8408085 100644
--- a/config/profiles/builder.nix
+++ b/config/profiles/builder.nix
@@ -1,7 +1,10 @@
 { lib, pkgs, ... }: {
   kyouma.deployment.auto-upgrade.cache = "daemon";
   nix.gc.options = lib.mkForce "--delete-older-than 60d";
-  nix.settings.trusted-users = [ "build" ];
+  nix.settings = {
+    trusted-users = [ "build" ];
+    system-features = [ "nixos-test" "benchmark" "big-parallel" "kvm" ] ++ lib.optionals pkgs.hostPlatform.isx86_64 [ "gccarch-x86-64-v3" ];
+  };
   nix.extraOptions = ''
     min-free = ${builtins.toString (4096 * 1024 * 1024)}
     max-free = ${builtins.toString (8192 * 1024 * 1024)}
diff --git a/config/services/hydra/nix-config.nix b/config/services/hydra/nix-config.nix
index 351d4bf..761b4d8 100644
--- a/config/services/hydra/nix-config.nix
+++ b/config/services/hydra/nix-config.nix
@@ -6,7 +6,7 @@
       maxJobs = 40;
       speedFactor = 40;
       systems = [ "x86_64-linux" ];
-      supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
+      supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" "gccarch-x86-64-v3" ];
       sshKey = config.sops.secrets."services/hydra/id_ed25519_hydra".path;
     }
     {