diff --git a/builder/virtualbox/builder.go b/builder/virtualbox/builder.go
index f7ec0e455..d0860331e 100644
--- a/builder/virtualbox/builder.go
+++ b/builder/virtualbox/builder.go
@@ -25,31 +25,31 @@ type Builder struct {
 }
 
 type config struct {
-	BootCommand           []string      `mapstructure:"boot_command"`
-	BootWait              time.Duration ``
-	DiskSize              uint          `mapstructure:"disk_size"`
-	GuestAdditionsPath    string        `mapstructure:"guest_additions_path"`
-	GuestAdditionsURL     string        `mapstructure:"guest_additions_url"`
-	GuestAdditionsSHA256  string        `mapstructure:"guest_additions_sha256"`
-	GuestOSType           string        `mapstructure:"guest_os_type"`
-	Headless              bool          `mapstructure:"headless"`
-	HTTPDir               string        `mapstructure:"http_directory"`
-	HTTPPortMin           uint          `mapstructure:"http_port_min"`
-	HTTPPortMax           uint          `mapstructure:"http_port_max"`
-	ISOMD5                string        `mapstructure:"iso_md5"`
-	ISOUrl                string        `mapstructure:"iso_url"`
-	OutputDir             string        `mapstructure:"output_directory"`
-	ShutdownCommand       string        `mapstructure:"shutdown_command"`
-	ShutdownTimeout       time.Duration ``
-	SSHHostPortMin        uint          `mapstructure:"ssh_host_port_min"`
-	SSHHostPortMax        uint          `mapstructure:"ssh_host_port_max"`
-	SSHPassword           string        `mapstructure:"ssh_password"`
-	SSHPort               uint          `mapstructure:"ssh_port"`
-	SSHUser               string        `mapstructure:"ssh_username"`
-	SSHWaitTimeout        time.Duration ``
-	VBoxVersionFile       string        `mapstructure:"virtualbox_version_file"`
-	VBoxManage            [][]string    `mapstructure:"vboxmanage"`
-	VMName                string        `mapstructure:"vm_name"`
+	BootCommand          []string      `mapstructure:"boot_command"`
+	BootWait             time.Duration ``
+	DiskSize             uint          `mapstructure:"disk_size"`
+	GuestAdditionsPath   string        `mapstructure:"guest_additions_path"`
+	GuestAdditionsURL    string        `mapstructure:"guest_additions_url"`
+	GuestAdditionsSHA256 string        `mapstructure:"guest_additions_sha256"`
+	GuestOSType          string        `mapstructure:"guest_os_type"`
+	Headless             bool          `mapstructure:"headless"`
+	HTTPDir              string        `mapstructure:"http_directory"`
+	HTTPPortMin          uint          `mapstructure:"http_port_min"`
+	HTTPPortMax          uint          `mapstructure:"http_port_max"`
+	ISOMD5               string        `mapstructure:"iso_md5"`
+	ISOUrl               string        `mapstructure:"iso_url"`
+	OutputDir            string        `mapstructure:"output_directory"`
+	ShutdownCommand      string        `mapstructure:"shutdown_command"`
+	ShutdownTimeout      time.Duration ``
+	SSHHostPortMin       uint          `mapstructure:"ssh_host_port_min"`
+	SSHHostPortMax       uint          `mapstructure:"ssh_host_port_max"`
+	SSHPassword          string        `mapstructure:"ssh_password"`
+	SSHPort              uint          `mapstructure:"ssh_port"`
+	SSHUser              string        `mapstructure:"ssh_username"`
+	SSHWaitTimeout       time.Duration ``
+	VBoxVersionFile      string        `mapstructure:"virtualbox_version_file"`
+	VBoxManage           [][]string    `mapstructure:"vboxmanage"`
+	VMName               string        `mapstructure:"vm_name"`
 
 	PackerBuildName string `mapstructure:"packer_build_name"`
 	PackerDebug     bool   `mapstructure:"packer_debug"`
diff --git a/builder/virtualbox/builder_test.go b/builder/virtualbox/builder_test.go
index 6b94eeefe..655ce57ad 100644
--- a/builder/virtualbox/builder_test.go
+++ b/builder/virtualbox/builder_test.go
@@ -216,7 +216,6 @@ func TestBuilderPrepare_GuestAdditionsURL(t *testing.T) {
 	}
 }
 
-
 func TestBuilderPrepare_HTTPPort(t *testing.T) {
 	var b Builder
 	config := testConfig()
diff --git a/builder/virtualbox/step_download_guest_additions.go b/builder/virtualbox/step_download_guest_additions.go
index 3253a1b9d..3965df779 100644
--- a/builder/virtualbox/step_download_guest_additions.go
+++ b/builder/virtualbox/step_download_guest_additions.go
@@ -35,7 +35,7 @@ func (s *stepDownloadGuestAdditions) Run(state map[string]interface{}) multistep
 	ui := state["ui"].(packer.Ui)
 	config := state["config"].(*config)
 
-  // Get VBox version
+	// Get VBox version
 	version, err := driver.Version()
 	if err != nil {
 		state["error"] = fmt.Errorf("Error reading version for guest additions download: %s", err)
@@ -49,17 +49,17 @@ func (s *stepDownloadGuestAdditions) Run(state map[string]interface{}) multistep
 
 	additionsName := fmt.Sprintf("VBoxGuestAdditions_%s.iso", version)
 
-  // Use provided version or get it from virtualbox.org
-  var checksum string
+	// Use provided version or get it from virtualbox.org
+	var checksum string
 
-  if config.GuestAdditionsSHA256 != "" {
-    checksum = config.GuestAdditionsSHA256
-  } else {
-    checksum, action = s.downloadAdditionsSHA256(state, version, additionsName)
-    if action != multistep.ActionContinue {
-  		return action
-  	}
-  }
+	if config.GuestAdditionsSHA256 != "" {
+		checksum = config.GuestAdditionsSHA256
+	} else {
+		checksum, action = s.downloadAdditionsSHA256(state, version, additionsName)
+		if action != multistep.ActionContinue {
+			return action
+		}
+	}
 
 	checksumBytes, err := hex.DecodeString(checksum)
 	if err != nil {
@@ -67,14 +67,14 @@ func (s *stepDownloadGuestAdditions) Run(state map[string]interface{}) multistep
 		return multistep.ActionHalt
 	}
 
-  // Use the provided source (URL or file path) or generate it
-  url := config.GuestAdditionsURL
-  if url == "" {
-    url = fmt.Sprintf(
-		  "http://download.virtualbox.org/virtualbox/%s/%s",
-  		version,
-  		additionsName)
-  }
+	// Use the provided source (URL or file path) or generate it
+	url := config.GuestAdditionsURL
+	if url == "" {
+		url = fmt.Sprintf(
+			"http://download.virtualbox.org/virtualbox/%s/%s",
+			version,
+			additionsName)
+	}
 
 	log.Printf("Guest additions URL: %s", url)
 
@@ -138,12 +138,12 @@ DownloadWaitLoop:
 	return result, multistep.ActionContinue
 }
 
-func (s *stepDownloadGuestAdditions) downloadAdditionsSHA256 (state map[string]interface{}, additionsVersion string, additionsName string) (string, multistep.StepAction) {
-  // First things first, we get the list of checksums for the files available
+func (s *stepDownloadGuestAdditions) downloadAdditionsSHA256(state map[string]interface{}, additionsVersion string, additionsName string) (string, multistep.StepAction) {
+	// First things first, we get the list of checksums for the files available
 	// for this version.
 	checksumsUrl := fmt.Sprintf("http://download.virtualbox.org/virtualbox/%s/SHA256SUMS", additionsVersion)
 	checksumsFile, err := ioutil.TempFile("", "packer")
-	
+
 	if err != nil {
 		state["error"] = fmt.Errorf(
 			"Failed creating temporary file to store guest addition checksums: %s",
@@ -203,6 +203,6 @@ func (s *stepDownloadGuestAdditions) downloadAdditionsSHA256 (state map[string]i
 		return "", multistep.ActionHalt
 	}
 
-  return checksum, multistep.ActionContinue
+	return checksum, multistep.ActionContinue
 
 }