diff --git a/.vim/vimrc b/.vim/vimrc
index 9524c41..6f82be3 100644
--- a/.vim/vimrc
+++ b/.vim/vimrc
@@ -1336,7 +1336,13 @@ nnoremap <Leader>ve :e $MYVIMRC<CR>
 nnoremap <Leader>vr :source $MYVIMRC<CR>call RefreshUI()<CR>
 
 " https://sw.kovidgoyal.net/kitty/faq/#using-a-color-theme-with-a-background-color-does-not-work-well-in-vim
-" work wround vim's background colour erase
+" work around vim's background colour erase:
+"
+" vim hardcodes background color erase even if the terminfo file does
+" not contain bce (not to mention that libvte based terminals
+" incorrectly contain bce in their terminfo files). This causes
+" incorrect background rendering when using a color theme with a
+" background color.
 let &t_ut=''
 
 " as per https://github.com/direnv/direnv/wiki/Vim