diff --git a/README.md b/README.md
index f79f1c3..bd95613 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,7 @@ if (!imagePage.isLast) {
 * Getting a Medium
 ```dart
 final Medium medium = await PhotoGallery.getMedium(
-  mediumId: "10", 
+  mediumId: "10",
   mediumType: MediumType.image
 );
 ```
diff --git a/lib/photo_gallery.dart b/lib/photo_gallery.dart
index 9ca35f6..cda25cb 100644
--- a/lib/photo_gallery.dart
+++ b/lib/photo_gallery.dart
@@ -29,7 +29,7 @@ class PhotoGallery {
   }) async {
     final json = await _channel.invokeMethod('listAlbums', {
       'mediumType': mediumTypeToJson(mediumType),
-      'hideIfEmpty': hideIfEmpty
+      'hideIfEmpty': hideIfEmpty,
     });
     return json.map<Album>((x) => Album.fromJson(x)).toList();
   }