diff --git a/system/kernighan/kernighan.nix b/system/kernighan/kernighan.nix
index 448e07d..5690010 100644
--- a/system/kernighan/kernighan.nix
+++ b/system/kernighan/kernighan.nix
@@ -42,7 +42,7 @@
 
   nix.buildMachines = [ {
     hostName = "kernighan";
-    system = "x86_64-linux";
+    systems = ["x86_64-linux" "aarch64-linux"];
     protocol = "ssh-ng";
     maxJobs = 1;
     speedFactor = 2;