diff --git a/barcode-reader/src/main/java/info/androidhive/barcode/ScannerOverlay.java b/barcode-reader/src/main/java/info/androidhive/barcode/ScannerOverlay.java
index 1a49be1..e276854 100644
--- a/barcode-reader/src/main/java/info/androidhive/barcode/ScannerOverlay.java
+++ b/barcode-reader/src/main/java/info/androidhive/barcode/ScannerOverlay.java
@@ -58,6 +58,7 @@ protected void onSizeChanged(int w, int h, int oldw, int oldh) {
         left = (w - dpToPx(rectWidth)) / 2;
         top = (h - dpToPx(rectHeight)) / 2;
         endY = top;
+        revAnimation = false;
         super.onSizeChanged(w, h, oldw, oldh);
     }
 
@@ -110,4 +111,4 @@ protected void onDraw(Canvas canvas) {
         canvas.drawLine(left, endY, left + dpToPx(rectWidth), endY, line);
         invalidate();
     }
-}
\ No newline at end of file
+}