diff --git a/types/react-image-gallery/index.d.ts b/types/react-image-gallery/index.d.ts
index 0082046763..ecf6582db9 100644
--- a/types/react-image-gallery/index.d.ts
+++ b/types/react-image-gallery/index.d.ts
@@ -21,6 +21,16 @@ export interface ReactImageGalleryItem {
     description?: string;
     srcSet?: string;
     sizes?: string;
+    bulletClass?: string;
+    bulletOnClick?({
+        item,
+        itemIndex,
+        currentIndex,
+    }: {
+        item: ReactImageGalleryItem;
+        itemIndex: number;
+        currentIndex: number;
+    }): void;
 }
 
 export interface ReactImageGalleryProps {
diff --git a/types/react-image-gallery/react-image-gallery-tests.tsx b/types/react-image-gallery/react-image-gallery-tests.tsx
index 04e7d6a6f9..89eddfe1fd 100644
--- a/types/react-image-gallery/react-image-gallery-tests.tsx
+++ b/types/react-image-gallery/react-image-gallery-tests.tsx
@@ -13,7 +13,8 @@ class ImageGallery extends React.Component {
     render() {
         const galleryItem: ReactImageGalleryItem = {
             original: 'http://localhost/logo.jpg',
-            originalTitle: 'My Logo'
+            originalTitle: 'My Logo',
+            bulletClass: 'my-bullet-class-name',
         };
 
         const props: ReactImageGalleryProps = {