diff --git a/AsyncDisplayKit/ASPagerNode.h b/AsyncDisplayKit/ASPagerNode.h
index 1dce834f22..658b7e1204 100644
--- a/AsyncDisplayKit/ASPagerNode.h
+++ b/AsyncDisplayKit/ASPagerNode.h
@@ -66,7 +66,7 @@ NS_ASSUME_NONNULL_BEGIN
  * @param index The index of the node.
  * @return A constrained size range for layout the node at this index.
  */
-- (ASSizeRange)pagerNode:(ASPagerNode *)pagerNode constrainedSizeForNodeAtIndex:(NSInteger)index;
+- (ASSizeRange)pagerNode:(ASPagerNode *)pagerNode constrainedSizeForNodeAtIndex:(NSInteger)index ASDISPLAYNODE_DEPRECATED_MSG("Pages in a pager node should be the exact size of the collection node (default behavior).");
 
 @end
 
diff --git a/AsyncDisplayKit/ASPagerNode.m b/AsyncDisplayKit/ASPagerNode.m
index ec64eab228..ffd2e34bea 100644
--- a/AsyncDisplayKit/ASPagerNode.m
+++ b/AsyncDisplayKit/ASPagerNode.m
@@ -153,11 +153,14 @@
 
 - (ASSizeRange)collectionNode:(ASCollectionNode *)collectionNode constrainedSizeForItemAtIndexPath:(NSIndexPath *)indexPath
 {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
   if (_pagerDelegateFlags.constrainedSizeForNode) {
     return [_pagerDelegate pagerNode:self constrainedSizeForNodeAtIndex:indexPath.item];
   }
+#pragma clang diagnostic pop
 
-  return ASSizeRangeMake(CGSizeZero, self.bounds.size);
+  return ASSizeRangeMake(self.bounds.size);
 }
 
 #pragma mark - Data Source Proxy