diff --git a/ios/Classes/BarcodeScannerViewController.m b/ios/Classes/BarcodeScannerViewController.m
index 0366f0d..662c381 100644
--- a/ios/Classes/BarcodeScannerViewController.m
+++ b/ios/Classes/BarcodeScannerViewController.m
@@ -16,6 +16,7 @@
     CGRect reversedBounds = CGRectMake(bounds.origin.x, bounds.origin.y, bounds.size.height, bounds.size.width);
     self.previewView.bounds = reversedBounds;
     self.previewView.frame = reversedBounds;
+    [self.scanRect stopAnimating];
     [self.scanRect removeFromSuperview];
     [self setupScanRect:reversedBounds];
     [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
diff --git a/ios/Classes/ScannerOverlay.m b/ios/Classes/ScannerOverlay.m
index ab4c121..eb8ca6f 100644
--- a/ios/Classes/ScannerOverlay.m
+++ b/ios/Classes/ScannerOverlay.m
@@ -83,13 +83,25 @@
   }
   
   - (CGRect)scanRect {
-    CGRect rect = self.frame;
-    CGFloat heightMultiplier = 3.0/4.0; // 4:3 aspect ratio
-    CGFloat scanRectWidth = rect.size.width * 0.8f;
-    CGFloat scanRectHeight = scanRectWidth * heightMultiplier;
-    CGFloat scanRectOriginX = (rect.size.width / 2) - (scanRectWidth / 2);
-    CGFloat scanRectOriginY = (rect.size.height / 2) - (scanRectHeight / 2);
-    return CGRectMake(scanRectOriginX, scanRectOriginY, scanRectWidth, scanRectHeight);
+      CGRect rect = self.frame;
+
+      CGFloat frameWidth = rect.size.width;
+      CGFloat frameHeight = rect.size.height;
+
+      BOOL isLandscape = frameWidth > frameHeight;
+      CGFloat widthOnPotrait = isLandscape ? frameHeight : frameWidth;
+      CGFloat heightMultiplier = 3.0/4.0; // 4:3 aspect ratio
+      CGFloat scanRectWidth = widthOnPotrait * 0.8f;
+      CGFloat scanRectHeight = scanRectWidth * heightMultiplier;
+
+      if(isLandscape) {
+          CGFloat navbarHeight = 32;
+          frameHeight += navbarHeight;
+      }
+
+      CGFloat scanRectOriginX = (frameWidth - scanRectWidth) / 2;
+      CGFloat scanRectOriginY = (frameHeight - scanRectHeight) / 2;
+      return CGRectMake(scanRectOriginX, scanRectOriginY, scanRectWidth, scanRectHeight);
   }
   
   - (CGRect)scanLineRect {