diff --git a/lua/lualine/config.lua b/lua/lualine/config.lua
index 30a7e65..fd791db 100644
--- a/lua/lualine/config.lua
+++ b/lua/lualine/config.lua
@@ -28,11 +28,11 @@ local config = {
   extensions = {},
 }
 
-local function check_sep_format_deprication(sep)
+local function check_sep_format_deprecation(sep)
   if type(sep) == 'table' and vim.tbl_islist(sep) then
     require('lualine.utils.notices').add_persistent_notice(string.format [[
 ### option.separator
-Using list for configuring separators has been depricated. Please configure it
+Using list for configuring separators has been deprecated. Please configure it
 with {left = left_sep, right = right_sep} like table.
 ]])
     sep = { left = sep[1], right = sep[2] or sep[1] }
@@ -46,7 +46,7 @@ local function fix_separators(separators)
     if type(separators) == 'string' then
       return { left = separators, right = separators }
     else
-      return check_sep_format_deprication(separators)
+      return check_sep_format_deprecation(separators)
     end
   end
   return separators
diff --git a/lua/lualine/utils/notices.lua b/lua/lualine/utils/notices.lua
index 4bc54ef..4b8701e 100644
--- a/lua/lualine/utils/notices.lua
+++ b/lua/lualine/utils/notices.lua
@@ -52,6 +52,7 @@ function M.show_notices()
   notice = vim.list_extend(notice, vim.tbl_flatten(notices))
   vim.fn.append(0, notice)
   vim.api.nvim_win_set_cursor(0, { 1, 0 })
+  vim.bo.modifiable=false
 end
 
 function M.clear_notices()