Add the 'c' flag to 'concealcursor'.
diff --git a/runtime/ftplugin/help.vim b/runtime/ftplugin/help.vim
index fff9527..fdac410 100644
--- a/runtime/ftplugin/help.vim
+++ b/runtime/ftplugin/help.vim
@@ -13,7 +13,7 @@
 
 let b:undo_ftplugin = "setl fo< tw< cole< cocu<"
 
-setlocal formatoptions+=tcroql textwidth=78 cole=2 cocu=n
+setlocal formatoptions+=tcroql textwidth=78 cole=2 cocu=nc
 
 let &cpo = s:cpo_save
 unlet s:cpo_save