diff --git a/nvim/.config/nvim/lua/maps.lua b/nvim/.config/nvim/lua/maps.lua
index ccfd6d2..d6258ff 100644
--- a/nvim/.config/nvim/lua/maps.lua
+++ b/nvim/.config/nvim/lua/maps.lua
@@ -50,6 +50,11 @@ map('n', '<Tab>', '%')
 map('i', '<C-u>', '<esc>gUiw`]a')
 map('i', '<C-y>', '<esc>guiw`]a')
 
+-- Add undo break-points at punctuations for plaintext editing
+for _, char in pairs({ ",", ".", ";", "?", "!" }) do
+    map("i", char, string.format("%s<c-g>u", char))
+end
+
 -- yank current filename/filepath to f buffer
 map('n', 'yp', ':let @p = expand("%")<Cr>', { desc = 'yank filename' })
 map('n', 'yP', ':let @p = expand("%:p")<Cr>', { desc = 'yank filepath' })