diff --git a/plugins/kernel_v2/config/nfs.rb b/plugins/kernel_v2/config/nfs.rb
deleted file mode 100644
index 21e7ea7bf..000000000
--- a/plugins/kernel_v2/config/nfs.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-require "vagrant"
-
-module VagrantPlugins
-  module Kernel_V2
-    class NFSConfig < Vagrant.plugin("2", :config)
-      attr_accessor :map_uid
-      attr_accessor :map_gid
-
-      def to_s
-        "NFS"
-      end
-    end
-  end
-end
diff --git a/plugins/kernel_v2/plugin.rb b/plugins/kernel_v2/plugin.rb
index 55cfcc0dc..0904481df 100644
--- a/plugins/kernel_v2/plugin.rb
+++ b/plugins/kernel_v2/plugin.rb
@@ -20,11 +20,6 @@ module VagrantPlugins
         SSHConfig
       end
 
-      config("nfs") do
-        require File.expand_path("../config/nfs", __FILE__)
-        NFSConfig
-      end
-
       config("package") do
         require File.expand_path("../config/package", __FILE__)
         PackageConfig
diff --git a/plugins/synced_folders/nfs/config.rb b/plugins/synced_folders/nfs/config.rb
new file mode 100644
index 000000000..d842f78b1
--- /dev/null
+++ b/plugins/synced_folders/nfs/config.rb
@@ -0,0 +1,26 @@
+require "vagrant"
+
+module VagrantPlugins
+  module SyncedFolderNFS
+    class Config < Vagrant.plugin("2", :config)
+      attr_accessor :map_uid
+      attr_accessor :map_gid
+
+      def initialize
+        super
+
+        @map_uid = UNSET_VALUE
+        @map_gid = UNSET_VALUE
+      end
+
+      def finalize!
+        @map_uid = nil if @map_uid == UNSET_VALUE
+        @map_gid = nil if @map_gid == UNSET_VALUE
+      end
+
+      def to_s
+        "NFS"
+      end
+    end
+  end
+end
diff --git a/plugins/synced_folders/nfs/plugin.rb b/plugins/synced_folders/nfs/plugin.rb
index 131d043a1..b6f1fa491 100644
--- a/plugins/synced_folders/nfs/plugin.rb
+++ b/plugins/synced_folders/nfs/plugin.rb
@@ -9,7 +9,12 @@ module VagrantPlugins
       implementation.
       EOF
 
-      synced_folder(:nfs, 5) do
+      config("nfs") do
+        require File.expand_path("../config", __FILE__)
+        Config
+      end
+
+      synced_folder("nfs", 5) do
         require File.expand_path("../synced_folder", __FILE__)
         SyncedFolder
       end