diff --git a/src/nvim/testdir/test_help.vim b/src/nvim/testdir/test_help.vim
index 6478ae5dbf..e30d305703 100644
--- a/src/nvim/testdir/test_help.vim
+++ b/src/nvim/testdir/test_help.vim
@@ -149,7 +149,7 @@ endfunc
 
 " Test for setting the 'helpheight' option in the help window
 func Test_help_window_height()
-  let &cmdheight = &lines - 24
+  let &cmdheight = &lines - 23
   set helpheight=10
   help
   set helpheight=14