diff --git a/plugin/fzf.vim b/plugin/fzf.vim
index 62671b12..4f361b42 100644
--- a/plugin/fzf.vim
+++ b/plugin/fzf.vim
@@ -402,12 +402,6 @@ try
     let dict.dir = fnamemodify(dict.dir, ':p')
   endif
 
-  if !has_key(dict, 'source') && !empty($FZF_DEFAULT_COMMAND) && !s:is_win
-    let temps.source = s:fzf_tempname()
-    call writefile(s:wrap_cmds(split($FZF_DEFAULT_COMMAND, "\n")), temps.source)
-    let dict.source = (empty($SHELL) ? &shell : $SHELL).' '.fzf#shellescape(temps.source)
-  endif
-
   if has_key(dict, 'source')
     let source = dict.source
     let type = type(source)