diff --git a/src/tests/vm/pt-grow-stack.c b/src/tests/vm/pt-grow-stack.c
new file mode 100644
index 0000000000000000000000000000000000000000..0997a00e4f4069084948e3869079f90541d64298
--- /dev/null
+++ b/src/tests/vm/pt-grow-stack.c
@@ -0,0 +1,20 @@
+/* Demonstrate that the stack can grow.
+   This must succeed. */
+
+#include <string.h>
+#include "tests/arc4.h"
+#include "tests/cksum.h"
+#include "tests/lib.h"
+#include "tests/main.h"
+
+void
+test_main (void)
+{
+  char stack_obj[4096];
+  struct arc4 arc4;
+
+  arc4_init (&arc4, "foobar", 6);
+  memset (stack_obj, 0, sizeof stack_obj);
+  arc4_crypt (&arc4, stack_obj, sizeof stack_obj);
+  msg ("cksum: %lu", cksum (stack_obj, sizeof stack_obj));
+}