diff --git a/scriptengines/javascript/simplebindings/bytearrayclass.cpp b/scriptengines/javascript/simplebindings/bytearrayclass.cpp
index b24068e2d..c3113e15b 100644
--- a/scriptengines/javascript/simplebindings/bytearrayclass.cpp
+++ b/scriptengines/javascript/simplebindings/bytearrayclass.cpp
@@ -234,7 +234,7 @@ QScriptValue ByteArrayClass::toScriptValue(QScriptEngine *eng, const QByteArray
 
 void ByteArrayClass::fromScriptValue(const QScriptValue &obj, QByteArray &ba)
 {
-    ba = qvariant_cast<QByteArray>(obj.data().toVariant());
+    ba = obj.toVariant().toByteArray();
 }