diff --git a/XJWaterfallView/XJWaterfallView.m b/XJWaterfallView/XJWaterfallView.m
index 1e801c6..0dbd7fb 100644
--- a/XJWaterfallView/XJWaterfallView.m
+++ b/XJWaterfallView/XJWaterfallView.m
@@ -126,6 +126,7 @@ - (void) reloadData {
 
     // Scrolls to top and tiles new petal views.
     [self scrollsToTop];
+    [self setNeedsLayout];
 }
 
 - (void) appendPetals {
@@ -468,4 +469,4 @@ - (XJPetalView*) popReusablePetalViewWithIdentifier:(NSString*)identifier {
     }
 }
 
-@end
\ No newline at end of file
+@end