diff --git a/src/qrcode_scanner/QrCodeUtils.cpp b/src/qrcode_scanner/QrCodeUtils.cpp
index 9fc3e9b..1efe489 100644
--- a/src/qrcode_scanner/QrCodeUtils.cpp
+++ b/src/qrcode_scanner/QrCodeUtils.cpp
@@ -40,7 +40,7 @@ QString QrCodeUtils::scanImage(const QImage &img) {
         return "";
     }
 
-    zbar::Image scanImg = zImg.convert(*(long*)"Y800");
+    zbar::Image scanImg = zImg.convert(zbar_fourcc('Y', '8', '0', '0'));
     scanner.scan(scanImg);
 
     QString result;
diff --git a/src/qrcode_scanner/QrScanThread.cpp b/src/qrcode_scanner/QrScanThread.cpp
index c39d67e..3b3db0a 100644
--- a/src/qrcode_scanner/QrScanThread.cpp
+++ b/src/qrcode_scanner/QrScanThread.cpp
@@ -26,7 +26,7 @@ void QrScanThread::image_callback(zbar::Image &image)
 void QrScanThread::processZImage(zbar::Image &image)
 {
     m_scanner.recycle_image(image);
-    zbar::Image tmp = image.convert(*(long*)"Y800");
+    zbar::Image tmp = image.convert(zbar_fourcc('Y', '8', '0', '0'));
     m_scanner.scan(tmp);
     image.set_symbols(tmp.get_symbols());
 }