diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf448613..d69f3595 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -36,6 +36,7 @@ The changelog for `IGListKit`. Also see the [releases](https://github.com/instag
 
 - Fixed crash when using `-[IGListCollectionContext dequeueReusableCellOfClass:withReuseIdentifier:forSectionController:atIndex:]` [Jeremy Lawrence](https://github.com/ziewvater) (tbd)
 
+- Fixed logic flaw in `[IGListCollectionViewLayout shouldInvalidateLayoutForBoundsChange:]`. [Allen Hsu](https://github.com/allenhsu) (tbd)
 
 3.4.0
 -----
diff --git a/Source/IGListCollectionViewLayout.mm b/Source/IGListCollectionViewLayout.mm
index 98288ce4..5a439c23 100644
--- a/Source/IGListCollectionViewLayout.mm
+++ b/Source/IGListCollectionViewLayout.mm
@@ -415,13 +415,17 @@ static void adjustZIndexForAttributes(UICollectionViewLayoutAttributes *attribut
 - (BOOL)shouldInvalidateLayoutForBoundsChange:(CGRect)newBounds {
     const CGRect oldBounds = self.collectionView.bounds;
 
+    // always invalidate for size changes
+    if (!CGSizeEqualToSize(oldBounds.size, newBounds.size)) {
+        return YES;
+    }
+
     // if the y origin has changed, only invalidate when using sticky headers
     if (CGRectGetMinInDirection(newBounds, self.scrollDirection) != CGRectGetMinInDirection(oldBounds, self.scrollDirection)) {
         return self.stickyHeaders;
     }
 
-    // always invalidate for size changes
-    return !CGSizeEqualToSize(oldBounds.size, newBounds.size);
+    return NO;
 }
 
 - (void)prepareLayout {