diff --git a/GRKPageViewController/GRKPageViewController.h b/GRKPageViewController/GRKPageViewController.h
index 5f5fc0d..77d745f 100644
--- a/GRKPageViewController/GRKPageViewController.h
+++ b/GRKPageViewController/GRKPageViewController.h
@@ -89,4 +89,12 @@
  */
 - (void)setCurrentIndex:(NSUInteger)index animated:(BOOL)animated;
 
+/**
+ If you change the count of viewControllers after viewDidLoad, call this method to recalculate the 
+ scrollView content size.
+ e.g. PageViewController is added to the screen upon viewHiearchy setup, but your data
+ is coming in asynchronously.
+ */
+- (void) updatePageLayout;
+
 @end
diff --git a/GRKPageViewController/GRKPageViewController.m b/GRKPageViewController/GRKPageViewController.m
index da3bd26..34457ce 100644
--- a/GRKPageViewController/GRKPageViewController.m
+++ b/GRKPageViewController/GRKPageViewController.m
@@ -91,6 +91,11 @@ - (void)initPages
 
 #pragma mark - Acessors
 
+- (void) updatePageLayout
+{
+    [self initPages];
+}
+
 - (void)setCurrentIndex:(NSUInteger)currentIndex
 {
     [self setCurrentIndex:currentIndex animated:NO];