diff --git a/cmd/radioctl/radioctl.go b/cmd/radioctl/radioctl.go
index f0209ec28ba38e73a232b329dfd585bac194dc43..61741c41d1bed9d7576bac84b73263c81147a905 100644
--- a/cmd/radioctl/radioctl.go
+++ b/cmd/radioctl/radioctl.go
@@ -33,7 +33,7 @@ type stringOptionalValue struct {
 }
 
 func newStringOptionalValue() *stringOptionalValue {
-	return &stringOptionalValue{}
+	return &stringOptionalValue{optionalValue: &optionalValue{}}
 }
 
 func (v *stringOptionalValue) Set(val string) error {
@@ -60,7 +60,7 @@ type intOptionalValue struct {
 }
 
 func newIntOptionalValue() *intOptionalValue {
-	return &intOptionalValue{}
+	return &intOptionalValue{optionalValue: &optionalValue{}}
 }
 
 func (v *intOptionalValue) Set(val string) error {
@@ -88,7 +88,7 @@ type floatOptionalValue struct {
 }
 
 func newFloatOptionalValue() *floatOptionalValue {
-	return &floatOptionalValue{}
+	return &floatOptionalValue{optionalValue: &optionalValue{}}
 }
 
 func (v *floatOptionalValue) Set(val string) error {