diff --git a/src/testdir/test_options.vim b/src/testdir/test_options.vim
index bd9da73..09a41f7 100644
--- a/src/testdir/test_options.vim
+++ b/src/testdir/test_options.vim
@@ -732,6 +732,7 @@
   call assert_fails('set backupcopy=', 'E474:')
   call assert_fails('set regexpengine=3', 'E474:')
   call assert_fails('set history=10001', 'E474:')
+  call assert_fails('set msghistory=10001', 'E474:')
   call assert_fails('set numberwidth=21', 'E474:')
   call assert_fails('set colorcolumn=-a', 'E474:')
   call assert_fails('set colorcolumn=a', 'E474:')
@@ -745,6 +746,7 @@
   endif
   call assert_fails('set helpheight=-1', 'E487:')
   call assert_fails('set history=-1', 'E487:')
+  call assert_fails('set msghistory=-1', 'E487:')
   call assert_fails('set report=-1', 'E487:')
   call assert_fails('set shiftwidth=-1', 'E487:')
   call assert_fails('set sidescroll=-1', 'E487:')