diff --git a/engage.toml b/engage.toml
index 365c0179..d28ecff1 100644
--- a/engage.toml
+++ b/engage.toml
@@ -184,5 +184,6 @@ cargo test \
 name = "nix-default"
 group = "tests"
 script = """
-nix run .#default -- --help
+bin/nix-build-and-cache just .#default
+nix run -L .#default -- --help
 """