diff --git a/platform-darwin/Source/iOS/MPSitesViewController.m b/platform-darwin/Source/iOS/MPSitesViewController.m
index e94b7154..bbadc0cc 100644
--- a/platform-darwin/Source/iOS/MPSitesViewController.m
+++ b/platform-darwin/Source/iOS/MPSitesViewController.m
@@ -172,6 +172,19 @@ typedef NS_OPTIONS( NSUInteger, MPPasswordsTips ) {
     return cell;
 }
 
+#pragma mark - UICollectionViewDelegateFlowLayout
+
+- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout
+  sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
+
+    UICollectionViewFlowLayout *layout = (UICollectionViewFlowLayout *)collectionViewLayout;
+    CGFloat availableWidth = collectionView.bounds.size.width
+                             - collectionView.layoutMargins.left - collectionView.layoutMargins.right
+                             - layout.sectionInset.left - layout.sectionInset.right;
+    CGFloat cells = MAX( 1, (int)((availableWidth + layout.minimumInteritemSpacing) / (318 + layout.minimumInteritemSpacing)) );
+    return CGSizeMake( (availableWidth - layout.minimumInteritemSpacing * (cells - 1)) / cells, 100 );
+}
+
 #pragma mark - UIScrollDelegate
 
 - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {
diff --git a/platform-darwin/Source/iOS/Storyboard.storyboard b/platform-darwin/Source/iOS/Storyboard.storyboard
index 517ea590..ef7ec33d 100644
--- a/platform-darwin/Source/iOS/Storyboard.storyboard
+++ b/platform-darwin/Source/iOS/Storyboard.storyboard
@@ -69,7 +69,7 @@
                                         </collectionViewFlowLayout>
                                         <cells>
                                             <collectionViewCell opaque="NO" multipleTouchEnabled="YES" contentMode="center" reuseIdentifier="MPAvatarCell" id="Zab-uQ-uk9" customClass="MPAvatarCell">
-                                                <rect key="frame" x="80" y="114.5" width="215" height="667"/>
+                                                <rect key="frame" x="80" y="115" width="215" height="667"/>
                                                 <autoresizingMask key="autoresizingMask" flexibleMinX="YES" flexibleMaxX="YES" flexibleMinY="YES" flexibleMaxY="YES"/>
                                                 <view key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center">
                                                     <rect key="frame" x="0.0" y="0.0" width="215" height="667"/>