diff --git a/builder/qemu/builder.go b/builder/qemu/builder.go
index 796f90b4c..90969f38c 100644
--- a/builder/qemu/builder.go
+++ b/builder/qemu/builder.go
@@ -96,35 +96,35 @@ type Config struct {
 	Comm                  communicator.Config `mapstructure:",squash"`
 	common.FloppyConfig   `mapstructure:",squash"`
 
-	ISOSkipCache      bool       `mapstructure:"iso_skip_cache"`
-	Accelerator       string     `mapstructure:"accelerator"`
-	CpuCount          int        `mapstructure:"cpus"`
-	AdditionalDiskSize []string  `mapstructure:"disk_additional_size"`
-	DiskInterface     string     `mapstructure:"disk_interface"`
-	DiskSize          uint       `mapstructure:"disk_size"`
-	DiskCache         string     `mapstructure:"disk_cache"`
-	DiskDiscard       string     `mapstructure:"disk_discard"`
-	DetectZeroes      string     `mapstructure:"disk_detect_zeroes"`
-	SkipCompaction    bool       `mapstructure:"skip_compaction"`
-	DiskCompression   bool       `mapstructure:"disk_compression"`
-	Format            string     `mapstructure:"format"`
-	Headless          bool       `mapstructure:"headless"`
-	DiskImage         bool       `mapstructure:"disk_image"`
-	UseBackingFile    bool       `mapstructure:"use_backing_file"`
-	MachineType       string     `mapstructure:"machine_type"`
-	MemorySize        int        `mapstructure:"memory"`
-	NetDevice         string     `mapstructure:"net_device"`
-	OutputDir         string     `mapstructure:"output_directory"`
-	QemuArgs          [][]string `mapstructure:"qemuargs"`
-	QemuBinary        string     `mapstructure:"qemu_binary"`
-	ShutdownCommand   string     `mapstructure:"shutdown_command"`
-	SSHHostPortMin    int        `mapstructure:"ssh_host_port_min"`
-	SSHHostPortMax    int        `mapstructure:"ssh_host_port_max"`
-	UseDefaultDisplay bool       `mapstructure:"use_default_display"`
-	VNCBindAddress    string     `mapstructure:"vnc_bind_address"`
-	VNCPortMin        int        `mapstructure:"vnc_port_min"`
-	VNCPortMax        int        `mapstructure:"vnc_port_max"`
-	VMName            string     `mapstructure:"vm_name"`
+	ISOSkipCache       bool       `mapstructure:"iso_skip_cache"`
+	Accelerator        string     `mapstructure:"accelerator"`
+	CpuCount           int        `mapstructure:"cpus"`
+	AdditionalDiskSize []string   `mapstructure:"disk_additional_size"`
+	DiskInterface      string     `mapstructure:"disk_interface"`
+	DiskSize           uint       `mapstructure:"disk_size"`
+	DiskCache          string     `mapstructure:"disk_cache"`
+	DiskDiscard        string     `mapstructure:"disk_discard"`
+	DetectZeroes       string     `mapstructure:"disk_detect_zeroes"`
+	SkipCompaction     bool       `mapstructure:"skip_compaction"`
+	DiskCompression    bool       `mapstructure:"disk_compression"`
+	Format             string     `mapstructure:"format"`
+	Headless           bool       `mapstructure:"headless"`
+	DiskImage          bool       `mapstructure:"disk_image"`
+	UseBackingFile     bool       `mapstructure:"use_backing_file"`
+	MachineType        string     `mapstructure:"machine_type"`
+	MemorySize         int        `mapstructure:"memory"`
+	NetDevice          string     `mapstructure:"net_device"`
+	OutputDir          string     `mapstructure:"output_directory"`
+	QemuArgs           [][]string `mapstructure:"qemuargs"`
+	QemuBinary         string     `mapstructure:"qemu_binary"`
+	ShutdownCommand    string     `mapstructure:"shutdown_command"`
+	SSHHostPortMin     int        `mapstructure:"ssh_host_port_min"`
+	SSHHostPortMax     int        `mapstructure:"ssh_host_port_max"`
+	UseDefaultDisplay  bool       `mapstructure:"use_default_display"`
+	VNCBindAddress     string     `mapstructure:"vnc_bind_address"`
+	VNCPortMin         int        `mapstructure:"vnc_port_min"`
+	VNCPortMax         int        `mapstructure:"vnc_port_max"`
+	VMName             string     `mapstructure:"vm_name"`
 
 	// These are deprecated, but we keep them around for BC
 	// TODO(@mitchellh): remove