diff --git a/js/test_cases/explicit_context_setting/main.dust b/js/test_cases/explicit_context_setting/main.dust
index e9b92d0..65bdddb 100644
--- a/js/test_cases/explicit_context_setting/main.dust
+++ b/js/test_cases/explicit_context_setting/main.dust
@@ -406,3 +406,10 @@ Do blocks or inline partials have parameters{~n}
 {<some_block_override pet="lizard" name="rover"}
     {pet}, {name}{~n}
 {/some_block_override}
+
+Does exists have parameters{~n}
+==========================={~n}
+{?some_global pet="snake"}
+    {pet}{~n}
+{/some_global}
+