diff --git a/mediapipe/tasks/ios/components/containers/sources/MPPCategory.h b/mediapipe/tasks/ios/components/containers/sources/MPPCategory.h
index 7a760a52b..648725d95 100644
--- a/mediapipe/tasks/ios/components/containers/sources/MPPCategory.h
+++ b/mediapipe/tasks/ios/components/containers/sources/MPPCategory.h
@@ -25,7 +25,7 @@ NS_SWIFT_NAME(ClassificationCategory)
 @interface MPPCategory : NSObject
 
 /**
-  * The index of the label in the corresponding label file. It takes the value -1 if the index is
+  * The index of the label in the corresponding label file. Set to -1 if the index is
   * not set.
   **/
 @property(nonatomic, readonly) NSInteger index;