diff --git a/autoload/airline/extensions/tabline/tabs.vim b/autoload/airline/extensions/tabline/tabs.vim
index 08e3000b..a74ab5be 100644
--- a/autoload/airline/extensions/tabline/tabs.vim
+++ b/autoload/airline/extensions/tabline/tabs.vim
@@ -101,7 +101,7 @@ function! airline#extensions#tabline#tabs#get()
 endfunction
 
 function! airline#extensions#tabline#tabs#map_keys()
-  if exists("s:airline_tabline_map_key")
+  if maparg('<Plug>AirlineSelectTab1', 'n') is# ':1tabn<CR>'
     return
   endif
   noremap <silent> <Plug>AirlineSelectTab1 :1tabn<CR>
@@ -116,7 +116,6 @@ function! airline#extensions#tabline#tabs#map_keys()
   noremap <silent> <Plug>AirlineSelectPrevTab gT
   " tabn {count} goes to count tab does not go {count} tab pages forward!
   noremap <silent> <Plug>AirlineSelectNextTab :<C-U>exe repeat(':tabn\|', v:count1)<cr>
-  let s:airline_tabline_map_key = 1
 endfunction
 
 function! airline#extensions#tabline#tabs#tabnr_formatter(nr, i)