diff --git a/Signal/src/ViewControllers/MessagesViewController.m b/Signal/src/ViewControllers/MessagesViewController.m
index 608beeb6f..7e80ab698 100644
--- a/Signal/src/ViewControllers/MessagesViewController.m
+++ b/Signal/src/ViewControllers/MessagesViewController.m
@@ -690,8 +690,6 @@ typedef enum : NSUInteger {
 @property (nonatomic, readonly) UILabel *backButtonUnreadCountLabel;
 @property (nonatomic, readonly) NSUInteger backButtonUnreadCount;
 
-@property (nonatomic) CGFloat previousCollectionViewFrameWidth;
-
 @property (nonatomic) NSUInteger page;
 @property (nonatomic) BOOL composeOnOpen;
 @property (nonatomic) BOOL callOnOpen;