diff --git a/init.lua b/init.lua
index c97c5eb..a425782 100644
--- a/init.lua
+++ b/init.lua
@@ -158,6 +158,13 @@ ts.setup({
 ---- Filetypes ---
 -- KDL --
 vim.filetype.add({ extension = { kdl = "kdl" } })
+-- Markdown --
+vim.api.nvim_create_autocmd({ "FileType" }, {
+	pattern = "markdown",
+	callback = function()
+		vim.opt_local.textwidth = 90
+	end,
+})
 -- YAML --
 vim.api.nvim_create_autocmd({ "FileType" }, {
 	pattern = "yaml",