diff --git a/ZLSwipeableView/ViewManager.h b/ZLSwipeableView/ViewManager.h
index 1ec4a3d..cf90849 100644
--- a/ZLSwipeableView/ViewManager.h
+++ b/ZLSwipeableView/ViewManager.h
@@ -8,7 +8,7 @@
 
 #import <UIKit/UIKit.h>
 
-typedef NS_ENUM(NSUInteger, ViewManagerState) {
+typedef NS_OPTIONS(NSUInteger, ViewManagerState) {
     ViewManagerStateSnapping = 0,
     ViewManagerStateMoving = (1 << 0),
     ViewManagerStateSwiping = (1 << 1),
diff --git a/ZLSwipeableView/ZLSwipeableView.h b/ZLSwipeableView/ZLSwipeableView.h
index b0c07e3..8b9e412 100755
--- a/ZLSwipeableView/ZLSwipeableView.h
+++ b/ZLSwipeableView/ZLSwipeableView.h
@@ -10,7 +10,7 @@
 #import "ZLSwipeableViewMovement.h"
 #import "ZLSwipeableViewSwipeOptions.h"
 
-typedef NS_ENUM(NSUInteger, ZLSwipeableViewDirection) {
+typedef NS_OPTIONS(NSUInteger, ZLSwipeableViewDirection) {
     ZLSwipeableViewDirectionNone = 0,
     ZLSwipeableViewDirectionLeft = (1 << 0),
     ZLSwipeableViewDirectionRight = (1 << 1),