diff --git a/QRCodeReaderViewController/QRCodeReaderViewController.h b/QRCodeReaderViewController/QRCodeReaderViewController.h
index 619e502..e1fcf3a 100644
--- a/QRCodeReaderViewController/QRCodeReaderViewController.h
+++ b/QRCodeReaderViewController/QRCodeReaderViewController.h
@@ -215,5 +215,6 @@
  * @since 3.0.0
  */
 @property (strong, nonatomic, readonly) QRCodeReader * __nonnull codeReader;
+@property (copy, nonatomic)void(^CancelBlock)(void);
 
 @end
diff --git a/QRCodeReaderViewController/QRCodeReaderViewController.m b/QRCodeReaderViewController/QRCodeReaderViewController.m
index 0ca0205..79b741b 100644
--- a/QRCodeReaderViewController/QRCodeReaderViewController.m
+++ b/QRCodeReaderViewController/QRCodeReaderViewController.m
@@ -292,6 +292,10 @@ - (void)cancelAction:(UIButton *)button
 {
   [_codeReader stopScanning];
 
+    if (self.CancelBlock) {
+        self.CancelBlock();
+    }
+    
   if (_completionBlock) {
     _completionBlock(nil);
   }