diff --git a/runtime/autoload/netrw.vim b/runtime/autoload/netrw.vim
index 7d1a35c..29310aa 100644
--- a/runtime/autoload/netrw.vim
+++ b/runtime/autoload/netrw.vim
@@ -1791,8 +1791,10 @@
 "  call Decho("settings buf#".bufnr("%")."<".bufname("%").">: ".((&l:ma == 0)? "no" : "")."ma ".((&l:mod == 0)? "no" : "")."mod ".((&l:bl == 0)? "no" : "")."bl ".((&l:ro == 0)? "no" : "")."ro fo=".&l:fo." a:vt=".a:vt,'~'.expand("<slnum>"))
   if !exists("{a:vt}netrw_optionsave")
 "   call Decho("case ".a:vt."netrw_optionsave : doesn't exist",'~'.expand("<slnum>"))
-"   call Decho("..doing filetype detect anyway")
-   filetype detect
+   if !isdirectory(expand('%'))
+"    call Decho("..doing filetype detect anyway")
+     filetype detect
+   endif
 "   call Decho("..settings buf#".bufnr("%")."<".bufname("%").">: ".((&l:ma == 0)? "no" : "")."ma ".((&l:mod == 0)? "no" : "")."mod ".((&l:bl == 0)? "no" : "")."bl ".((&l:ro == 0)? "no" : "")."ro fo=".&l:fo." a:vt=".a:vt,'~'.expand("<slnum>"))
 "   call Decho("..ro=".&l:ro." ma=".&l:ma." mod=".&l:mod." wrap=".&l:wrap." (filename<".expand("%")."> win#".winnr()." ft<".&ft.">)",'~'.expand("<slnum>"))
 "   call Dret("s:NetrwOptionsRestore : ".a:vt."netrw_optionsave doesn't exist")
@@ -1904,9 +1906,11 @@
   " were having their filetype detect-generated settings overwritten by
   " NetrwOptionRestore.
   if &ft != "netrw"
-"   call Decho("before: filetype detect  (ft=".&ft.")",'~'.expand("<slnum>"))
-   filetype detect
-"   call Decho("after : filetype detect  (ft=".&ft.")",'~'.expand("<slnum>"))
+    if !isdirectory(expand('%'))
+"     call Decho("before: filetype detect  (ft=".&ft.")",'~'.expand("<slnum>"))
+      filetype detect
+"     call Decho("after : filetype detect  (ft=".&ft.")",'~'.expand("<slnum>"))
+    endif
   endif
 "  call Decho("(s:NetrwOptionsRestore) lines=".&lines)
 "  call Decho("settings buf#".bufnr("%")."<".bufname("%").">: ".((&l:ma == 0)? "no" : "")."ma ".((&l:mod == 0)? "no" : "")."mod ".((&l:bl == 0)? "no" : "")."bl ".((&l:ro == 0)? "no" : "")."ro fo=".&l:fo." a:vt=".a:vt,'~'.expand("<slnum>"))