diff --git a/doc/copilot.txt b/doc/copilot.txt
index 081e5108..0600ffc3 100644
--- a/doc/copilot.txt
+++ b/doc/copilot.txt
@@ -53,7 +53,7 @@ Install the plugin with your preferred plugin manager. For example, with
 packer.nvim <https://github.com/wbthomason/packer.nvim>:
 
 >lua
-    use { "zbirenbaum/copilot.lua" 
+    use { "zbirenbaum/copilot.lua"
       requires = {
         "copilotlsp-nvim/copilot-lsp", -- (optional) for NES functionality
       },
@@ -198,14 +198,14 @@ Default configuration ~
       root_dir = function()
         return vim.fs.dirname(vim.fs.find(".git", { upward = true })[1])
       end,
-      should_attach = function(_, _)
-        if not vim.bo.buflisted then
+      should_attach = function(buf_id, _)
+        if not vim.bo[buf_id].buflisted then
           logger.debug("not attaching, buffer is not 'buflisted'")
           return false
         end
     
-        if vim.bo.buftype ~= "" then
-          logger.debug("not attaching, buffer 'buftype' is " .. vim.bo.buftype)
+        if vim.bo[buf_id].buftype ~= "" then
+          logger.debug("not attaching, buffer 'buftype' is " .. vim.bo[buf_id].buftype)
           return false
         end