diff --git a/src/testdir/test_viml.vim b/src/testdir/test_viml.vim
index 0120d21..10869f3 100644
--- a/src/testdir/test_viml.vim
+++ b/src/testdir/test_viml.vim
@@ -942,6 +942,7 @@
     call assert_equal(0, type(0))
     call assert_equal(1, type(""))
     call assert_equal(2, type(function("tr")))
+    call assert_equal(2, type(function("tr", [8])))
     call assert_equal(3, type([]))
     call assert_equal(4, type({}))
     call assert_equal(5, type(0.0))