diff --git a/plugin/editorconfig.vim b/plugin/editorconfig.vim
index e491ce7c..d0deb265 100644
--- a/plugin/editorconfig.vim
+++ b/plugin/editorconfig.vim
@@ -368,7 +368,7 @@ endfunction " }}}2
 
 function! s:ApplyConfig(config) abort " Set the buffer options {{{1
     " Only process normal buffers (do not treat help files as '.txt' files)
-    if !empty(&buftype)
+    if index(['', 'acwrite'], &buftype) == -1
         return
     endif