diff --git a/driver/vm.go b/driver/vm.go
index 3b43069e9..118bdfb77 100644
--- a/driver/vm.go
+++ b/driver/vm.go
@@ -519,3 +519,25 @@ func (vm *VirtualMachine) addDevice(device types.BaseVirtualDevice) error {
 func convertGiBToKiB(gib int64) int64 {
 	return gib * 1024 * 1024
 }
+
+func (vm *VirtualMachine) AddConfigParams(params map[string]string) error {
+	var confSpec types.VirtualMachineConfigSpec
+
+	var ov []types.BaseOptionValue
+	for k, v := range params {
+		o := types.OptionValue{
+			Key:   k,
+			Value: v,
+		}
+		ov = append(ov, &o)
+	}
+	confSpec.ExtraConfig = ov
+
+	task, err := vm.vm.Reconfigure(vm.driver.ctx, confSpec)
+	if err != nil {
+		return err
+	}
+
+	_, err = task.WaitForResult(vm.driver.ctx, nil)
+	return err
+}
diff --git a/iso/builder.go b/iso/builder.go
index 822506149..6730ec969 100644
--- a/iso/builder.go
+++ b/iso/builder.go
@@ -50,6 +50,9 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 			Config:    &b.config.FloppyConfig,
 			Datastore: b.config.Datastore,
 		},
+		&StepConfigParams{
+			Config:    &b.config.ConfigParamsConfig,
+		},
 	)
 
 	if b.config.Comm.Type != "none" {
diff --git a/iso/config.go b/iso/config.go
index 516a6d279..73777d571 100644
--- a/iso/config.go
+++ b/iso/config.go
@@ -22,6 +22,7 @@ type Config struct {
 	CreateConfig `mapstructure:",squash"`
 	CDRomConfig  `mapstructure:",squash"`
 	FloppyConfig `mapstructure:",squash"`
+	ConfigParamsConfig `mapstructure:",squash"`
 
 	ctx interpolate.Context
 }
diff --git a/iso/step_config_params.go b/iso/step_config_params.go
new file mode 100644
index 000000000..15449fa70
--- /dev/null
+++ b/iso/step_config_params.go
@@ -0,0 +1,36 @@
+package iso
+
+import (
+	"github.com/hashicorp/packer/packer"
+	"github.com/jetbrains-infra/packer-builder-vsphere/driver"
+	"github.com/mitchellh/multistep"
+	"fmt"
+)
+
+type ConfigParamsConfig struct {
+	ConfigParams map[string]string `mapstructure:"configuration_parameters"`
+}
+
+func (c *ConfigParamsConfig) Prepare() []error {
+	return nil
+}
+
+type StepConfigParams struct {
+	Config *ConfigParamsConfig
+}
+
+func (s *StepConfigParams) Run(state multistep.StateBag) multistep.StepAction {
+	ui := state.Get("ui").(packer.Ui)
+	vm := state.Get("vm").(*driver.VirtualMachine)
+
+	ui.Say("Adding configuration parameters...")
+
+	if err := vm.AddConfigParams(s.Config.ConfigParams); err != nil {
+		state.Put("error", fmt.Errorf("error adding configuration parameters: %v", err))
+		return multistep.ActionHalt
+	}
+
+	return multistep.ActionContinue
+}
+
+func (s *StepConfigParams) Cleanup(state multistep.StateBag) {}