diff --git a/test/old/testdir/test_statusline.vim b/test/old/testdir/test_statusline.vim
index ebbc6e5443..f54a8b8064 100644
--- a/test/old/testdir/test_statusline.vim
+++ b/test/old/testdir/test_statusline.vim
@@ -715,4 +715,18 @@ func Test_statusline_in_sandbox()
   delfunc Check_statusline_in_sandbox
 endfunc
 
+" This used to call memmove with a negative size and crash Vim
+func Test_statusline_singlebyte_negative()
+  let [_columns, _ls, _stl, _enc]  = [&columns, &ls, &stl, &enc]
+  " set encoding=latin1
+  set laststatus=2 columns=15
+  setl stl=%#ErrorMsg#abcdtàØ?}}o@`s`ÿæCú\xE%#Normal#
+  vsp
+  setl stl=%#ErrorMsg#abcdtàØ?}}o@`s`ÿæCú\xE%#Normal#
+  redraw!
+  redrawstatus
+  bw!
+  let [&columns, &ls, &stl, &enc] = [_columns, _ls, _stl, _enc]
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab