diff --git a/.config/nvim/ftplugin/alex.lua b/.config/nvim/ftplugin/alex.lua
index fc0ba12d..ddc57c09 100644
--- a/.config/nvim/ftplugin/alex.lua
+++ b/.config/nvim/ftplugin/alex.lua
@@ -1 +1,8 @@
-vim.bo.commentstring = "-- %s"
+local opts = require("opts")
+opts.matchit_let_in()
+
+vim.bo.shiftwidth = 2
+vim.bo.expandtab = true
+
+-- useful for CPP extension
+vim.bo.smartindent = true