diff --git a/tests/auto/unit/qmultimedia_common/mockvideosurface.h b/tests/auto/unit/qmultimedia_common/mockvideosurface.h
index 51d758e9..2a67fbf8 100644
--- a/tests/auto/unit/qmultimedia_common/mockvideosurface.h
+++ b/tests/auto/unit/qmultimedia_common/mockvideosurface.h
@@ -48,7 +48,7 @@ class MockVideoSurface : public QAbstractVideoSurface
 {
 public:
     QList<QVideoFrame::PixelFormat> supportedPixelFormats(
-            const QAbstractVideoBuffer::HandleType) const
+            QAbstractVideoBuffer::HandleType = QAbstractVideoBuffer::NoHandle) const
     {
         return QList<QVideoFrame::PixelFormat>();
     }