diff --git a/types/react-radio-group/index.d.ts b/types/react-radio-group/index.d.ts
index 9628561b61..3dfa872527 100644
--- a/types/react-radio-group/index.d.ts
+++ b/types/react-radio-group/index.d.ts
@@ -6,17 +6,19 @@
 
 import * as React from 'react';
 
-export type Value = React.InputHTMLAttributes<HTMLInputElement>['value'];
+type Value = React.InputHTMLAttributes<HTMLInputElement>['value'];
 
-export type RadioProps = React.InputHTMLAttributes<HTMLInputElement>;
-
-export const Radio: React.ComponentClass<RadioProps>;
-
-export interface RadioGroupProps {
-    name?: string;
-    selectedValue?: Value;
-    onChange?: (value: Value) => void;
-    Component?: string | React.ReactElement<React.HTMLProps<HTMLElement>>;
+export namespace Radio {
+    export type RadioProps = React.InputHTMLAttributes<HTMLInputElement>;
 }
+export const Radio: React.ComponentClass<Radio.RadioProps>;
 
-export const RadioGroup: React.ComponentClass<RadioGroupProps>;
+export namespace RadioGroup {
+    export interface RadioGroupProps {
+        name?: string;
+        selectedValue?: Value;
+        onChange?: (value: Value) => void;
+        Component?: string | React.ReactElement<React.HTMLProps<HTMLElement>>;
+    }
+}
+export const RadioGroup: React.ComponentClass<RadioGroup.RadioGroupProps>;
diff --git a/types/react-radio-group/react-radio-group-tests.tsx b/types/react-radio-group/react-radio-group-tests.tsx
index 65cd53fab3..76e093059b 100644
--- a/types/react-radio-group/react-radio-group-tests.tsx
+++ b/types/react-radio-group/react-radio-group-tests.tsx
@@ -1,12 +1,8 @@
 import * as React from 'react';
-import { Radio, RadioGroup, RadioGroupProps, Value } from "react-radio-group";
+import { Radio, RadioGroup } from "react-radio-group";
 
-class ReactRadioGroup extends React.Component<RadioGroupProps> {
-    constructor(props: RadioGroupProps) {
-        super(props);
-    }
-
-    handleChange(value: Value) {
+class ReactRadioGroup extends React.Component<RadioGroup.RadioGroupProps> {
+    handleChange: RadioGroup.RadioGroupProps['onChange'] = value => {
         console.log(value);
     }