diff --git a/tests/flakes/common.sh b/tests/flakes/common.sh
index fdcdd4aef..9d79080cd 100644
--- a/tests/flakes/common.sh
+++ b/tests/flakes/common.sh
@@ -26,7 +26,7 @@ writeSimpleFlake() {
     };
 
     # To test "nix flake init".
-    legacyPackages.x86_64-linux.hello = import ./simple.nix;
+    legacyPackages.$system.hello = import ./simple.nix;
   };
 }
 EOF