diff --git a/common/substitutors.nix b/common/substitutors.nix
index b9f62c0..24bd6f1 100644
--- a/common/substitutors.nix
+++ b/common/substitutors.nix
@@ -29,6 +29,7 @@
       system-features = [
         "kvm"
         "big-parallel"
+        "nixos-test"
       ];
       allowed-uris = [
         "github:"