diff --git a/src/corelib/animation/qabstractanimation_p.h b/src/corelib/animation/qabstractanimation_p.h
index 24c7eed9d2a..cb9042777af 100644
--- a/src/corelib/animation/qabstractanimation_p.h
+++ b/src/corelib/animation/qabstractanimation_p.h
@@ -29,7 +29,7 @@ QT_BEGIN_NAMESPACE
 
 class QAnimationGroup;
 class QAbstractAnimation;
-class QAbstractAnimationPrivate : public QObjectPrivate
+class Q_CORE_EXPORT QAbstractAnimationPrivate : public QObjectPrivate
 {
 public:
     QAbstractAnimationPrivate();
diff --git a/src/gui/kernel/qsessionmanager_p.h b/src/gui/kernel/qsessionmanager_p.h
index 60e20b17474..c98f7a5a1d1 100644
--- a/src/gui/kernel/qsessionmanager_p.h
+++ b/src/gui/kernel/qsessionmanager_p.h
@@ -27,7 +27,7 @@ QT_BEGIN_NAMESPACE
 
 class QPlatformSessionManager;
 
-class QSessionManagerPrivate : public QObjectPrivate
+class Q_GUI_EXPORT QSessionManagerPrivate : public QObjectPrivate
 {
 public:
     QSessionManagerPrivate(const QString &id,