diff --git a/tests/functional/dependencies.nix b/tests/functional/dependencies.nix
index 64d9d2360..d177f5b63 100644
--- a/tests/functional/dependencies.nix
+++ b/tests/functional/dependencies.nix
@@ -40,6 +40,8 @@ let
         echo "@nix 1"
         echo "@nix {}"
         echo '@nix {"action": null}'
+        echo '@nix {"action": 123}'
+        echo '@nix ]['
       } >&$NIX_LOG_FD
       touch $out
     '';