diff --git a/autoload/airline/parts.vim b/autoload/airline/parts.vim
index 94d5eff..b6625c6 100644
--- a/autoload/airline/parts.vim
+++ b/autoload/airline/parts.vim
@@ -86,7 +86,7 @@ function! airline#parts#iminsert()
 endfunction
 
 function! airline#parts#readonly()
-  " only consider regular buffers (e.g. ones that represent actual files, 
+  " only consider regular buffers (e.g. ones that represent actual files,
   " but not special ones like e.g. NERDTree)
   if !empty(&buftype) || airline#util#ignore_buf(bufname('%'))
     return ''