diff --git a/Header.h b/Header.h
index 20da8bc..f5c6f4d 100644
--- a/Header.h
+++ b/Header.h
@@ -182,7 +182,8 @@
 @end
 
 @interface YTPivotBarIndicatorView : UIView
-@property (nonatomic, assign) BOOL hidden;
+@property (nonatomic, assign, readwrite, getter=isHidden) BOOL hidden;
+@property (nonatomic, assign, readwrite) CGFloat alpha;
 @end
 
 @interface YTCommentDetailHeaderCell : UIView