diff --git a/src/corelib/kernel/qppsobjectprivate_p.h b/src/corelib/kernel/qppsobjectprivate_p.h
index e1d54e58de..dae44e3609 100644
--- a/src/corelib/kernel/qppsobjectprivate_p.h
+++ b/src/corelib/kernel/qppsobjectprivate_p.h
@@ -57,13 +57,15 @@
 #include <QDebug>
 
 #include <sys/pps.h>
+#include <private/qobject_p.h>
 
 QT_BEGIN_NAMESPACE
 
 class QSocketNotifier;
 
-class QPpsObjectPrivate
+class QPpsObjectPrivate : public QObjectPrivate
 {
+    Q_DECLARE_PUBLIC(QPpsObject)
 public:
     explicit QPpsObjectPrivate(const QString &path);