diff --git a/android/src/main/kotlin/net/touchcapture/qr/flutterqr/QRView.kt b/android/src/main/kotlin/net/touchcapture/qr/flutterqr/QRView.kt
index 8750158..0369775 100644
--- a/android/src/main/kotlin/net/touchcapture/qr/flutterqr/QRView.kt
+++ b/android/src/main/kotlin/net/touchcapture/qr/flutterqr/QRView.kt
@@ -89,7 +89,8 @@ class QRView(private val context: Context, messenger: BinaryMessenger, private v
             "getFlashInfo" -> getFlashInfo(result)
             "getSystemFeatures" -> getSystemFeatures(result)
             "changeScanArea" -> changeScanArea(
-                call.argument<Double>("cutOutSize")!!,
+                call.argument<Double>("scanAreaWidth")!!,
+                call.argument<Double>("scanAreaHeight")!!,
                 call.argument<Double>("cutOutBottomOffset")!!,
                 result,
             )
@@ -253,11 +254,12 @@ class QRView(private val context: Context, messenger: BinaryMessenger, private v
     }
 
     private fun changeScanArea(
-        cutOutSize: Double,
+        dpScanAreaWidth: Double,
+        dpScanAreaHeight: Double,
         cutOutBottomOffset: Double,
         result: MethodChannel.Result
     ) {
-        setScanAreaSize(cutOutSize, cutOutSize, cutOutBottomOffset)
+        setScanAreaSize(dpScanAreaWidth, dpScanAreaHeight, cutOutBottomOffset)
         result.success(true)
     }
 
diff --git a/lib/src/qr_code_scanner.dart b/lib/src/qr_code_scanner.dart
index 9faf3af..88b0d42 100644
--- a/lib/src/qr_code_scanner.dart
+++ b/lib/src/qr_code_scanner.dart
@@ -346,7 +346,8 @@ class QRViewController {
         return false;
       }
       await channel.invokeMethod('changeScanArea', {
-        'cutOutSize': overlay.cutOutWidth,//Todo
+        'scanAreaWidth': overlay.cutOutWidth,
+        'scanAreaHeight': overlay.cutOutHeight,
         'cutOutBottomOffset': overlay.cutOutBottomOffset
       });
       return true;