diff --git a/plugins/hosts/linux/cap/nfs.rb b/plugins/hosts/linux/cap/nfs.rb
index a55d8acb2..d766980d0 100644
--- a/plugins/hosts/linux/cap/nfs.rb
+++ b/plugins/hosts/linux/cap/nfs.rb
@@ -102,7 +102,8 @@ module VagrantPlugins
 
           # Use sed to just strip out the block of code which was inserted
           # by Vagrant
-          system("cp /etc/exports $TMPDIR && #{sudo_command}sed -r -e '\\\x01^# VAGRANT-BEGIN:( #{user})? #{id}\x01,\\\x01^# VAGRANT-END:( #{user})? #{id}\x01 d' -ibak $TMPDIR/exports ; cp $TMPDIR/exports /etc/exports")
+          tmp = ENV["TMPDIR"] || ENV["TMP"] || "/tmp"
+          system("cp /etc/exports '#{tmp}' && #{sudo_command}sed -r -e '\\\x01^# VAGRANT-BEGIN:( #{user})? #{id}\x01,\\\x01^# VAGRANT-END:( #{user})? #{id}\x01 d' -ibak '#{tmp}/exports' ; cp '#{tmp}/exports' /etc/exports")
         end
 
         def self.nfs_opts_setup(folders)