diff --git a/plugins/kernel_v1/config/vm.rb b/plugins/kernel_v1/config/vm.rb
index 2efd38da1..3e40bb0d7 100644
--- a/plugins/kernel_v1/config/vm.rb
+++ b/plugins/kernel_v1/config/vm.rb
@@ -96,7 +96,7 @@ module VagrantPlugins
         new.vm.box               = self.box if self.box
         new.vm.box_url           = self.box_url if self.box_url
         new.vm.guest             = self.guest if self.guest
-        new.vm.host_name         = self.host_name if self.host_name
+        new.vm.hostname          = self.host_name if self.host_name
         new.vm.usable_port_range = self.auto_port_range if self.auto_port_range
 
         if self.boot_mode
diff --git a/plugins/kernel_v2/config/vm.rb b/plugins/kernel_v2/config/vm.rb
index 6534190d9..e1dd26073 100644
--- a/plugins/kernel_v2/config/vm.rb
+++ b/plugins/kernel_v2/config/vm.rb
@@ -17,7 +17,7 @@ module VagrantPlugins
       attr_accessor :graceful_halt_retry_count
       attr_accessor :graceful_halt_retry_interval
       attr_accessor :guest
-      attr_accessor :host_name
+      attr_accessor :hostname
       attr_accessor :usable_port_range
       attr_reader :synced_folders
       attr_reader :provisioners
@@ -25,6 +25,7 @@ module VagrantPlugins
       def initialize
         @graceful_halt_retry_count    = UNSET_VALUE
         @graceful_halt_retry_interval = UNSET_VALUE
+        @hostname                     = UNSET_VALUE
         @synced_folders               = {}
         @provisioners                 = []