diff --git a/doc/CopilotChat.txt b/doc/CopilotChat.txt
index ec88643b..73d61ff3 100644
--- a/doc/CopilotChat.txt
+++ b/doc/CopilotChat.txt
@@ -58,6 +58,7 @@ LAZY.NVIM ~
           { "zbirenbaum/copilot.lua" }, -- or github/copilot.vim
           { "nvim-lua/plenary.nvim" }, -- for curl, log wrapper
         },
+        build = "make tiktoken", -- Only on MacOS or Linux
         opts = {
           debug = true, -- Enable debugging
           -- See Configuration section for rest