diff --git a/src/platformtheme/kdeplatformsystemtrayicon.h b/src/platformtheme/kdeplatformsystemtrayicon.h
index 4b47f13..8f13a36 100644
--- a/src/platformtheme/kdeplatformsystemtrayicon.h
+++ b/src/platformtheme/kdeplatformsystemtrayicon.h
@@ -1,115 +1,119 @@
 /*  This file is part of the KDE libraries
  *  Copyright 2014 Martin Gräßlin <mgraesslin@kde.org>
  *
  *  This library is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU Lesser General Public License as published by
  *  the Free Software Foundation; either version 2 of the License or ( at
  *  your option ) version 3 or, at the discretion of KDE e.V. ( which shall
  *  act as a proxy as in section 14 of the GPLv3 ), any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Library General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public License
  *  along with this library; see the file COPYING.LIB.  If not, write to
  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  *  Boston, MA 02110-1301, USA.
  */
 #ifndef KDEPLATFORMSYSTEMTRAYICON_H
 #define KDEPLATFORMSYSTEMTRAYICON_H
 
 #include <qpa/qplatformmenu.h>
 #include <qpa/qplatformsystemtrayicon.h>
 
 class KStatusNotifierItem;
 class SystemTrayMenuItem;
 class QAction;
 class QMenu;
 
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 3, 0))
 class SystemTrayMenu : public QPlatformMenu
 {
     Q_OBJECT
 public:
     SystemTrayMenu();
     ~SystemTrayMenu() Q_DECL_OVERRIDE;
     void insertMenuItem(QPlatformMenuItem *menuItem, QPlatformMenuItem *before) Q_DECL_OVERRIDE;
     QPlatformMenuItem *menuItemAt(int position) const Q_DECL_OVERRIDE;
     QPlatformMenuItem *menuItemForTag(quintptr tag) const Q_DECL_OVERRIDE;
     void removeMenuItem(QPlatformMenuItem *menuItem) Q_DECL_OVERRIDE;
     void setEnabled(bool enabled) Q_DECL_OVERRIDE;
     void setIcon(const QIcon &icon) Q_DECL_OVERRIDE;
     void setTag(quintptr tag) Q_DECL_OVERRIDE;
     void setText(const QString &text) Q_DECL_OVERRIDE;
     void setVisible(bool visible) Q_DECL_OVERRIDE;
     void syncMenuItem(QPlatformMenuItem *menuItem) Q_DECL_OVERRIDE;
     void syncSeparatorsCollapsible(bool enable) Q_DECL_OVERRIDE;
     quintptr tag() const Q_DECL_OVERRIDE;
     QPlatformMenuItem *createMenuItem() const Q_DECL_OVERRIDE;
 
     QMenu *menu() const;
 
 private:
     quintptr m_tag;
     QScopedPointer<QMenu> m_menu;
     QList<SystemTrayMenuItem*> m_items;
 };
 
 class SystemTrayMenuItem : public QPlatformMenuItem
 {
     Q_OBJECT
 public:
     SystemTrayMenuItem();
     ~SystemTrayMenuItem() Q_DECL_OVERRIDE;
     void setCheckable(bool checkable) Q_DECL_OVERRIDE;
     void setChecked(bool isChecked) Q_DECL_OVERRIDE;
     void setEnabled(bool enabled) Q_DECL_OVERRIDE;
     void setFont(const QFont &font) Q_DECL_OVERRIDE;
     void setIcon(const QIcon &icon) Q_DECL_OVERRIDE;
     void setIsSeparator(bool isSeparator) Q_DECL_OVERRIDE;
     void setMenu(QPlatformMenu *menu) Q_DECL_OVERRIDE;
     void setRole(MenuRole role) Q_DECL_OVERRIDE;
     void setShortcut(const QKeySequence &shortcut) Q_DECL_OVERRIDE;
     void setTag(quintptr tag) Q_DECL_OVERRIDE;
     void setText(const QString &text) Q_DECL_OVERRIDE;
     void setVisible(bool isVisible) Q_DECL_OVERRIDE;
     quintptr tag() const Q_DECL_OVERRIDE;
-    void setIconSize(int size) Q_DECL_OVERRIDE /*Q_DECL_OVERRIDE*/; //enable when depending on Qt5.4
+    void setIconSize(int size)
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 4, 0))
+    Q_DECL_OVERRIDE
+#endif
+    ;
 
     QAction *action() const;
 
 private:
     quintptr m_tag;
     QAction *m_action;
 };
 #endif
 
 class KDEPlatformSystemTrayIcon : public QPlatformSystemTrayIcon
 {
 public:
     KDEPlatformSystemTrayIcon();
     ~KDEPlatformSystemTrayIcon() Q_DECL_OVERRIDE;
 
     void init() Q_DECL_OVERRIDE;
     void cleanup() Q_DECL_OVERRIDE;
     void updateIcon(const QIcon &icon) Q_DECL_OVERRIDE;
     void updateToolTip(const QString &tooltip) Q_DECL_OVERRIDE;
     void updateMenu(QPlatformMenu *menu) Q_DECL_OVERRIDE;
     QRect geometry() const Q_DECL_OVERRIDE;
     void showMessage(const QString &title, const QString &msg,
                      const QIcon &icon, MessageIcon iconType, int secs) Q_DECL_OVERRIDE;
 
     bool isSystemTrayAvailable() const Q_DECL_OVERRIDE;
     bool supportsMessages() const Q_DECL_OVERRIDE;
 
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 3, 0))
     QPlatformMenu *createMenu() const Q_DECL_OVERRIDE;
 #endif
 
 private:
     KStatusNotifierItem *m_sni;
 };
 
 #endif