diff --git a/bundle/format.nvim/lua/format.lua b/bundle/format.nvim/lua/format.lua
index f4c5b61ea..799fa6be4 100644
--- a/bundle/format.nvim/lua/format.lua
+++ b/bundle/format.nvim/lua/format.lua
@@ -3,6 +3,8 @@ local M = {}
 local util = require('format.util')
 local task = require('format.task')
 
+local custom_formatters = {}
+
 function M.format(bang, user_input, start_line, end_line)
   if not vim.o.modifiable then
     return util.msg('buffer is not modifiable!')
@@ -13,11 +15,16 @@ function M.format(bang, user_input, start_line, end_line)
   if filetype == '' then
     return util.msg('format: skip empty filetype')
   end
+  local ok, formatter
+  if custom_formatters[filetype] then
+    formatter = custom_formatters[filetype]
+  end
 
-  local ok, default_formatter = pcall(require, 'format.ft.' .. filetype)
-
-  if not ok then
-    return util.msg('no formatter for ' .. filetype)
+  if not formatter then
+    ok, formatter = pcall(require, 'format.ft.' .. filetype)
+    if not ok then
+      return util.msg('no formatter for ' .. filetype)
+    end
   end
 
   task.run({
@@ -25,10 +32,15 @@ function M.format(bang, user_input, start_line, end_line)
     stdin = vim.api.nvim_buf_get_lines(0, start_line - 1, end_line - 1, false),
     start_line = start_line - 1,
     end_line = end_line - 1,
-    formatter = default_formatter
+    formatter = formatter,
   })
 end
 
-function M.setup(opts) end
-
+function M.setup(opt)
+  if opt.custom_formatters and type(opt.custom_formatters) == 'table' then
+    for k, v in pairs(opt.custom_formatters) do
+      custom_formatters[k] = v
+    end
+  end
+end
 return M