diff --git a/nvim/bindings.lua b/nvim/bindings.lua
index 0d95131..3a119f4 100644
--- a/nvim/bindings.lua
+++ b/nvim/bindings.lua
@@ -51,9 +51,17 @@ vim.api.nvim_create_autocmd("FileType", {
     desc = "comment multiple lines for python source file"
 })
 
+vim.api.nvim_create_autocmd("FileType", {
+    pattern = { "scheme" },
+    callback = function(args)
+        vim.keymap.set('v', '<leader>;', ':normal 0i;<esc>', { buffer = args.buf })
+    end,
+    group = 'lang_spec',
+    desc = "comment multiple lines for scheme source"
+})
 
 vim.api.nvim_create_autocmd("FileType", {
-    pattern = { 'c', 'cpp' },
+    pattern = { 'c', 'cpp', 'go', 'rust' },
     callback = function(args)
         vim.keymap.set('v', '<leader>//', ':normal 0i//<esc>', { buffer = args.buf })
     end,