diff --git a/cli/test.fb b/cli/test.fb
index 63a0cde..5669221 100644
--- a/cli/test.fb
+++ b/cli/test.fb
@@ -46,4 +46,5 @@ let main _ : () -> () =
     | 2 -> print_str "two",
     print_str "main";
     show_short_curicuit ();
+    let y = externed 0;
     return ();
\ No newline at end of file