diff --git a/lua/cmp/utils/keymap.lua b/lua/cmp/utils/keymap.lua
index 8e916b9..aea5c1d 100644
--- a/lua/cmp/utils/keymap.lua
+++ b/lua/cmp/utils/keymap.lua
@@ -1,4 +1,5 @@
 local misc = require('cmp.utils.misc')
+local buffer = require('cmp.utils.buffer')
 local api = require('cmp.utils.api')
 
 local keymap = {}
@@ -16,15 +17,15 @@ end
 ---@param keys string
 ---@return string
 keymap.normalize = function(keys)
-  local normalize_buf = vim.api.nvim_create_buf(false, true)
+  local normalize_buf = buffer.ensure('cmp.util.keymap.normalize')
   vim.api.nvim_buf_set_keymap(normalize_buf, 't', keys, '<Plug>(cmp.utils.keymap.normalize)', {})
   for _, map in ipairs(vim.api.nvim_buf_get_keymap(normalize_buf, 't')) do
     if keymap.equals(map.rhs, '<Plug>(cmp.utils.keymap.normalize)') then
-      vim.api.nvim_buf_delete(normalize_buf, {})
+      vim.api.nvim_buf_del_keymap(normalize_buf, 't', keys)
       return map.lhs
     end
   end
-  vim.api.nvim_buf_delete(normalize_buf, {})
+  vim.api.nvim_buf_del_keymap(normalize_buf, 't', keys)
   return keys
 end