diff --git a/types/storybook__addon-actions/index.d.ts b/types/storybook__addon-actions/index.d.ts
index 9b7009fbad..2d5cc73ef8 100644
--- a/types/storybook__addon-actions/index.d.ts
+++ b/types/storybook__addon-actions/index.d.ts
@@ -7,5 +7,5 @@
 export type HandlerFunction = (...args: any[]) => undefined;
 export type DecoratorFunction = (args: any[]) => any[];
 
-export function decorateAction(decorators: DecoratorFunction[]): HandlerFunction;
+export function decorateAction(decorators: DecoratorFunction[]): (name: string) => HandlerFunction;
 export function action(name: string): HandlerFunction;
diff --git a/types/storybook__addon-actions/storybook__addon-actions-tests.tsx b/types/storybook__addon-actions/storybook__addon-actions-tests.tsx
index 77ba80985b..b9c9bbba7f 100644
--- a/types/storybook__addon-actions/storybook__addon-actions-tests.tsx
+++ b/types/storybook__addon-actions/storybook__addon-actions-tests.tsx
@@ -19,3 +19,21 @@ storiesOf('Button', module)
           Hello World!
         </button>
     ));
+
+interface CustomComponentProps {
+    id: string;
+    setValues(id: string, values: string[]): void;
+}
+class CustomComponent extends React.Component<CustomComponentProps> {
+    setSomeValues = () => {
+        this.props.setValues(this.props.id, ['one', 'two', 'three']);
+    }
+    render() {
+        return <button onClick={this.setSomeValues}>Set some values</button>;
+    }
+}
+
+storiesOf('CustomComponent', module)
+    .add('decorated custom action', () => (
+        <CustomComponent id="test" setValues={firstArgAction('set-values')} />
+    ));