diff --git a/.config/nvim/lua/settings.lua b/.config/nvim/lua/settings.lua
index c3d9704..379ad64 100644
--- a/.config/nvim/lua/settings.lua
+++ b/.config/nvim/lua/settings.lua
@@ -22,19 +22,19 @@ packer.use {
 }
 
 -- remove trailing whitespace
-function remove_trailing_whitespace()
+function my_remove_trailing_whitespace()
     local curpos = vim.api.nvim_win_get_cursor(0)
     vim.cmd([[keeppatterns %s/\s\+$//e]])
     vim.api.nvim_win_set_cursor(0, curpos)
 end
 
 vim.api.nvim_create_autocmd(
-    { "BufWritePre" },
+    { 'BufWritePre' },
     {
         pattern = {
-            "*.lua", "*.cpp", "*.hpp"
+            '*.lua', '*.cpp', '*.hpp'
         },
-        command = 'lua remove_trailing_whitespace()'
+        callback = my_remove_trailing_whitespace
     }
 )