diff --git a/lua/neoconf/commands.lua b/lua/neoconf/commands.lua
index bb70686a..7e40d6bf 100644
--- a/lua/neoconf/commands.lua
+++ b/lua/neoconf/commands.lua
@@ -51,6 +51,7 @@ function M.setup()
       pattern = Util.file_patterns({ autocmd = true }),
       group = group,
       callback = function(event)
+        pcall(Config.options.on_write, event)
         local fname = Util.fqn(event.match)
         -- clear cached settings for this file
         Settings.clear(fname)
diff --git a/lua/neoconf/config.lua b/lua/neoconf/config.lua
index 11d54191..701ad8dc 100644
--- a/lua/neoconf/config.lua
+++ b/lua/neoconf/config.lua
@@ -2,6 +2,8 @@ local M = {}
 
 ---@class Config
 M.defaults = {
+  -- Callback for when a setting is changes in local or global settings
+  -- on_write = function(event) end,
   -- name of the local settings files
   local_settings = ".neoconf.json",
   -- name of the global settings file in your Neovim config directory