diff --git a/src/testdir/test_messages.vim b/src/testdir/test_messages.vim
index 32ffb48..ac91aa0 100644
--- a/src/testdir/test_messages.vim
+++ b/src/testdir/test_messages.vim
@@ -76,6 +76,7 @@
   call assert_equal("\n12345", execute(':echomsg 12345'))
   call assert_equal("\n[]", execute(':echomsg []'))
   call assert_equal("\n[1, 2, 3]", execute(':echomsg [1, 2, 3]'))
+  call assert_equal("\n[1, 2, []]", execute(':echomsg [1, 2, test_null_list()]'))
   call assert_equal("\n{}", execute(':echomsg {}'))
   call assert_equal("\n{'a': 1, 'b': 2}", execute(':echomsg {"a": 1, "b": 2}'))
   if has('float')