diff --git a/README.md b/README.md
index 3800d48..d85c536 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Readme!
 Concept
 ====================
 
-- No flicker
+- No flicker (Sorry. Now, nvim-cmp requires `set lazyredraw` for reducing flickers.)
 - Works properly
 - Fully customizable via Lua functions
 - Fully supported LSP's Completion capabilities
@@ -61,6 +61,7 @@ Plug 'hrsh7th/vim-vsnip'
 call plug#end()
 
 set completeopt=menu,menuone,noselect
+set lazyredraw
 
 lua <<EOF
   -- Setup nvim-cmp.
diff --git a/lua/cmp/utils/keymap.lua b/lua/cmp/utils/keymap.lua
index 5d95c64..f4182d8 100644
--- a/lua/cmp/utils/keymap.lua
+++ b/lua/cmp/utils/keymap.lua
@@ -80,8 +80,7 @@ keymap.backspace = function(count)
     return ''
   end
   local keys = {}
-  table.insert(keys, keymap.t('<C-g>U'))
-  table.insert(keys, keymap.t(string.rep('<Left>', count)))
+  table.insert(keys, keymap.t(string.rep('<C-g>U<Left>', count)))
   table.insert(keys, keymap.t(string.rep('<Del>', count)))
   return table.concat(keys, '')
 end