diff --git a/doc/examples/tiled/lib/main.dart b/doc/examples/tiled/lib/main.dart
index 445ab3991..87c0f1658 100644
--- a/doc/examples/tiled/lib/main.dart
+++ b/doc/examples/tiled/lib/main.dart
@@ -21,17 +21,21 @@ class TiledGame extends BaseGame {
   }
 
   void _addCoinsInMap(TiledComponent tiledMap) async {
-    final ObjectGroup obj =
+    final ObjectGroup objGroup =
         await tiledMap.getObjectGroupFromLayer("AnimatedCoins");
-    if (obj == null) {
+    if (objGroup == null) {
       return;
     }
-    for (TmxObject obj in obj.tmxObjects) {
+    objGroup.tmxObjects.forEach((TmxObject obj) {
       final comp = AnimationComponent(
-          20.0, 20.0, Animation.sequenced('coins.png', 8, textureWidth: 20));
+        20.0,
+        20.0,
+        Animation.sequenced('coins.png', 8,
+            textureWidth: 20, textureHeight: 20),
+      );
       comp.x = obj.x.toDouble();
       comp.y = obj.y.toDouble();
       add(comp);
-    }
+    });
   }
 }