diff --git a/lib/vagrant/config.rb b/lib/vagrant/config.rb
index 46ee28c40..c21d287fe 100644
--- a/lib/vagrant/config.rb
+++ b/lib/vagrant/config.rb
@@ -4,13 +4,14 @@ module Vagrant
   end
 
   class Config
+    extend StackedProcRunner
+
     @@config = nil
-    @@config_runners = []
 
     class << self
       def reset!
         @@config = nil
-        config_runners.clear
+        proc_stack.clear
       end
 
       def configures(key, klass)
@@ -21,19 +22,12 @@ module Vagrant
         @@config ||= Config::Top.new
       end
 
-      def config_runners
-        @@config_runners ||= []
-      end
-
       def run(&block)
-        config_runners << block
+        push_proc(&block)
       end
 
       def execute!
-        config_runners.each do |block|
-          block.call(config)
-        end
-
+        run_procs!(config)
         config.loaded!
       end
     end
diff --git a/test/vagrant/config_test.rb b/test/vagrant/config_test.rb
index a301b0875..ce36a3711 100644
--- a/test/vagrant/config_test.rb
+++ b/test/vagrant/config_test.rb
@@ -35,10 +35,10 @@ class ConfigTest < Test::Unit::TestCase
       assert !config.equal?(Vagrant::Config.config)
     end
 
-    should "empty the runners" do
-      assert !Vagrant::Config.config_runners.empty?
+    should "empty the proc stack" do
+      assert !Vagrant::Config.proc_stack.empty?
       Vagrant::Config.reset!
-      assert Vagrant::Config.config_runners.empty?
+      assert Vagrant::Config.proc_stack.empty?
     end
   end
 
@@ -54,29 +54,18 @@ class ConfigTest < Test::Unit::TestCase
   end
 
   context "initializing" do
-    teardown do
+    setup do
       Vagrant::Config.reset!
     end
 
-    should "not run the blocks right away" do
-      obj = mock("obj")
-      obj.expects(:foo).never
-      Vagrant::Config.run { |config| obj.foo }
-      Vagrant::Config.run { |config| obj.foo }
-      Vagrant::Config.run { |config| obj.foo }
+    should "add the given block to the proc stack" do
+      proc = Proc.new {}
+      Vagrant::Config.run(&proc)
+      assert_equal [proc], Vagrant::Config.proc_stack
     end
 
-    should "run the blocks when execute! is ran" do
-      obj = mock("obj")
-      obj.expects(:foo).times(2)
-      Vagrant::Config.run { |config| obj.foo }
-      Vagrant::Config.run { |config| obj.foo }
-      Vagrant::Config.execute!
-    end
-
-    should "run the blocks with the same config object" do
-      Vagrant::Config.run { |config| assert config }
-      Vagrant::Config.run { |config| assert config }
+    should "run the proc stack with the config when execute is called" do
+      Vagrant::Config.expects(:run_procs!).with(Vagrant::Config.config).once
       Vagrant::Config.execute!
     end