diff --git a/ReactiveUI/Cocoa/ReactiveCollectionViewController.cs b/ReactiveUI/Cocoa/ReactiveCollectionViewController.cs
index 17f5644100..9c66203759 100644
--- a/ReactiveUI/Cocoa/ReactiveCollectionViewController.cs
+++ b/ReactiveUI/Cocoa/ReactiveCollectionViewController.cs
@@ -93,9 +93,9 @@ public IDisposable SuppressChangeNotifications()
         Subject<Unit> deactivated = new Subject<Unit>();
         public IObservable<Unit> Deactivated { get { return deactivated; } }
 
-        public override void ViewDidAppear(bool animated)
+        public override void ViewWillAppear(bool animated)
         {
-            base.ViewDidAppear(animated);
+            base.ViewWillAppear(animated);
             activated.OnNext(Unit.Default);
             this.ActivateSubviews(true);
         }
diff --git a/ReactiveUI/Cocoa/ReactiveNSViewController.cs b/ReactiveUI/Cocoa/ReactiveNSViewController.cs
index dadea4d8fc..a00bcd72c7 100644
--- a/ReactiveUI/Cocoa/ReactiveNSViewController.cs
+++ b/ReactiveUI/Cocoa/ReactiveNSViewController.cs
@@ -114,9 +114,9 @@ public IDisposable SuppressChangeNotifications()
         Subject<Unit> deactivated = new Subject<Unit>();
         public IObservable<Unit> Deactivated { get { return deactivated; } }
 
-        public override void ViewDidAppear(bool animated)
+        public override void ViewWillAppear(bool animated)
         {
-            base.ViewDidAppear(animated);
+            base.ViewWillAppear(animated);
             activated.OnNext(Unit.Default);
             this.ActivateSubviews(true);
         }
diff --git a/ReactiveUI/Cocoa/ReactivePageViewController.cs b/ReactiveUI/Cocoa/ReactivePageViewController.cs
index 0279e040a0..cd6da30ffd 100644
--- a/ReactiveUI/Cocoa/ReactivePageViewController.cs
+++ b/ReactiveUI/Cocoa/ReactivePageViewController.cs
@@ -96,9 +96,9 @@ public IDisposable SuppressChangeNotifications()
         Subject<Unit> deactivated = new Subject<Unit>();
         public IObservable<Unit> Deactivated { get { return deactivated; } }
 
-        public override void ViewDidAppear(bool animated)
+        public override void ViewWillAppear(bool animated)
         {
-            base.ViewDidAppear(animated);
+            base.ViewWillAppear(animated);
             activated.OnNext(Unit.Default);
             this.ActivateSubviews(true);
         }
diff --git a/ReactiveUI/Cocoa/ReactiveTabBarController.cs b/ReactiveUI/Cocoa/ReactiveTabBarController.cs
index 4151817af1..49178ccbfb 100644
--- a/ReactiveUI/Cocoa/ReactiveTabBarController.cs
+++ b/ReactiveUI/Cocoa/ReactiveTabBarController.cs
@@ -92,9 +92,9 @@ public IDisposable SuppressChangeNotifications()
         Subject<Unit> deactivated = new Subject<Unit>();
         public IObservable<Unit> Deactivated { get { return deactivated; } }
 
-        public override void ViewDidAppear(bool animated)
+        public override void ViewWillAppear(bool animated)
         {
-            base.ViewDidAppear(animated);
+            base.ViewWillAppear(animated);
             activated.OnNext(Unit.Default);
             this.ActivateSubviews(true);
         }
diff --git a/ReactiveUI/Cocoa/ReactiveTableViewController.cs b/ReactiveUI/Cocoa/ReactiveTableViewController.cs
index c1e07eb56b..c0822decd7 100644
--- a/ReactiveUI/Cocoa/ReactiveTableViewController.cs
+++ b/ReactiveUI/Cocoa/ReactiveTableViewController.cs
@@ -97,9 +97,9 @@ public IDisposable SuppressChangeNotifications()
         Subject<Unit> deactivated = new Subject<Unit>();
         public IObservable<Unit> Deactivated { get { return deactivated; } }
 
-        public override void ViewDidAppear(bool animated)
+        public override void ViewWillAppear(bool animated)
         {
-            base.ViewDidAppear(animated);
+            base.ViewWillAppear(animated);
             activated.OnNext(Unit.Default);
             this.ActivateSubviews(true);
         }