diff --git a/mediapipe/tasks/ios/vision/image_classifier/sources/MPPImageClassifierOptions.h b/mediapipe/tasks/ios/vision/image_classifier/sources/MPPImageClassifierOptions.h
index f7e9a6297..2e6022041 100644
--- a/mediapipe/tasks/ios/vision/image_classifier/sources/MPPImageClassifierOptions.h
+++ b/mediapipe/tasks/ios/vision/image_classifier/sources/MPPImageClassifierOptions.h
@@ -31,6 +31,7 @@ NS_SWIFT_NAME(ImageClassifierOptions)
 /**
  * The user-defined result callback for processing live stream data. The result callback should only
  * be specified when the running mode is set to the live stream mode.
+ * TODO: Add parameter `MPPImage` in the callback.
  */
 @property(nonatomic, copy) void (^completion)(MPPImageClassifierResult *result, NSError *error);