diff --git a/src/gui/kernel/qkeysequence.h b/src/gui/kernel/qkeysequence.h
index 4e0f1dfbfff..64515af7a90 100644
--- a/src/gui/kernel/qkeysequence.h
+++ b/src/gui/kernel/qkeysequence.h
@@ -227,6 +227,11 @@ public:
     QKeySequence(int) {}
 };
 
+#ifndef QT_NO_DATASTREAM
+Q_GUI_EXPORT QDataStream &operator<<(QDataStream &in, const QKeySequence &ks) {}
+Q_GUI_EXPORT QDataStream &operator>>(QDataStream &in, QKeySequence &ks) {}
+#endif /* #ifndef QT_NO_DATASTREAM */
+
 #endif // QT_NO_SHORTCUT
 
 QT_END_NAMESPACE