diff --git a/pkg/config/config.go b/pkg/config/config.go
index efd83f20..2f84efbe 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -143,8 +143,12 @@ func (vm *VirtualMachine) VirtioVsockDevices() []*VirtioVsock {
 // AddDevice adds a dev to vm. This device can be created with one of the
 // VirtioXXXNew methods.
 func (vm *VirtualMachine) AddDevice(dev VirtioDevice) error {
-	vm.Devices = append(vm.Devices, dev)
+	return vm.AddDevices(dev)
+}
 
+// AddDevices adds a list of devices to vm.
+func (vm *VirtualMachine) AddDevices(dev ...VirtioDevice) error {
+	vm.Devices = append(vm.Devices, dev...)
 	return nil
 }
 
diff --git a/pkg/config/json_test.go b/pkg/config/json_test.go
index 64ac0864..9345ebb1 100644
--- a/pkg/config/json_test.go
+++ b/pkg/config/json_test.go
@@ -97,19 +97,15 @@ var jsonTests = map[string]jsonTest{
 			err = vm.AddDevice(dev)
 			require.NoError(t, err)
 			// virtio-fs
-			dev, err = VirtioFsNew("/virtiofs", "tag")
-			require.NoError(t, err)
-			err = vm.AddDevice(dev)
+			fs, err := VirtioFsNew("/virtiofs", "tag")
 			require.NoError(t, err)
 			// USB mass storage
-			dev, err = USBMassStorageNew("/usbmassstorage")
-			require.NoError(t, err)
-			err = vm.AddDevice(dev)
+			usb, err := USBMassStorageNew("/usbmassstorage")
 			require.NoError(t, err)
 			// rosetta
-			dev, err = RosettaShareNew("vz-rosetta")
+			rosetta, err := RosettaShareNew("vz-rosetta")
 			require.NoError(t, err)
-			err = vm.AddDevice(dev)
+			err = vm.AddDevices(fs, usb, rosetta)
 			require.NoError(t, err)
 
 			return vm