diff --git a/src/xatu/testdata/clean.nix b/src/xatu/testdata/clean.nix
index 1e4a786..0963365 100644
--- a/src/xatu/testdata/clean.nix
+++ b/src/xatu/testdata/clean.nix
@@ -2,5 +2,6 @@
 
 {
   path = ./. + "/foo";
+  url = "https://example.com";
   inherit pkgs;
 }