diff --git a/krops.nix b/krops.nix
index 2f6f3a3..2b43d54 100644
--- a/krops.nix
+++ b/krops.nix
@@ -83,6 +83,7 @@ in {
 
   # usage: $(nix-build --no-out-link --argstr name HOSTNAME --argstr target PATH -A test)
   test = { target ? target }: pkgs.krops.writeTest "${name}-test" {
+    force = true;
     inherit target;
     source = source { test = true; };
   };