diff --git a/lib/vagrant/actions/vm/forward_ports.rb b/lib/vagrant/actions/vm/forward_ports.rb
index 496177639..8f959e7ec 100644
--- a/lib/vagrant/actions/vm/forward_ports.rb
+++ b/lib/vagrant/actions/vm/forward_ports.rb
@@ -108,7 +108,7 @@ module Vagrant
               else
                 # VirtualBox 3.2.x uses forwarded ports via NAT engines
                 vm.network_adapters.collect do |na|
-                  na.nat_engine.forwarded_ports.collect do |fp|
+                  na.nat_driver.forwarded_ports.collect do |fp|
                     fp.hostport.to_s
                   end
                 end
@@ -126,7 +126,7 @@ module Vagrant
             fp.each { |p| p.destroy }
           else
             runner.vm.network_adapters.each do |na|
-              na.nat_engine.forwarded_ports.dup.each do |fp|
+              na.nat_driver.forwarded_ports.dup.each do |fp|
                 fp.destroy
               end
             end
@@ -147,7 +147,7 @@ module Vagrant
             port.name = name
             port.guestport = options[:guestport]
             port.hostport = options[:hostport]
-            runner.vm.network_adapters[options[:adapter]].nat_engine.forwarded_ports << port
+            runner.vm.network_adapters[options[:adapter]].nat_driver.forwarded_ports << port
           end
         end
       end
diff --git a/lib/vagrant/ssh.rb b/lib/vagrant/ssh.rb
index ac1f5fe61..62c088fdd 100644
--- a/lib/vagrant/ssh.rb
+++ b/lib/vagrant/ssh.rb
@@ -140,7 +140,7 @@ module Vagrant
         # VirtualBox 3.2 specific
         pnum = nil
         env.vm.vm.network_adapters.each do |na|
-          pnum = na.nat_engine.forwarded_ports.detect do |fp|
+          pnum = na.nat_driver.forwarded_ports.detect do |fp|
             fp.name == env.config.ssh.forwarded_port_key
           end
 
diff --git a/test/vagrant/actions/vm/forward_ports_test.rb b/test/vagrant/actions/vm/forward_ports_test.rb
index 8de1dcf47..65c8991a9 100644
--- a/test/vagrant/actions/vm/forward_ports_test.rb
+++ b/test/vagrant/actions/vm/forward_ports_test.rb
@@ -194,7 +194,7 @@ class ForwardPortsActionTest < Test::Unit::TestCase
       fps = [mock_fp(2222), mock_fp(80)]
       na = mock("na")
       ne = mock("ne")
-      na.stubs(:nat_engine).returns(ne)
+      na.stubs(:nat_driver).returns(ne)
       ne.stubs(:forwarded_ports).returns(fps)
       @vms << mock_vm(:network_adapters => [na])
       assert_equal %W[2222 80], @action.used_ports
@@ -233,7 +233,7 @@ class ForwardPortsActionTest < Test::Unit::TestCase
         na = mock("adapter")
         engine = mock("engine")
         engine.stubs(:forwarded_ports).returns([mock_fp])
-        na.stubs(:nat_engine).returns(engine)
+        na.stubs(:nat_driver).returns(engine)
         na
       end
 
@@ -280,7 +280,7 @@ class ForwardPortsActionTest < Test::Unit::TestCase
         adapter = mock("adapter")
         engine = mock("engine")
         fps = mock("forwarded ports")
-        adapter.stubs(:nat_engine).returns(engine)
+        adapter.stubs(:nat_driver).returns(engine)
         engine.stubs(:forwarded_ports).returns(fps)
         fps.expects(:<<).with do |port|
           assert_equal name, port.name