diff --git a/src/core/icourse.h b/src/core/icourse.h
index d319ac5..5c90803 100644
--- a/src/core/icourse.h
+++ b/src/core/icourse.h
@@ -1,74 +1,74 @@
 /*
  *  Copyright 2019  Andreas Cord-Landwehr <cordlandwehr@kde.org>
  *
  *  This program is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU General Public License as
  *  published by the Free Software Foundation; either version 2 of
  *  the License or (at your option) version 3 or any later version
  *  accepted by the membership of KDE e.V. (or its successor approved
  *  by the membership of KDE e.V.), which shall act as a proxy
  *  defined in Section 14 of version 3 of the license.
  *
  *  This program 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 General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef ICOURSE_H
 #define ICOURSE_H
 
 #include "artikulatecore_export.h"
 #include <QObject>
 #include <QMap>
 #include <QUrl>
 
 class QString;
 class Language;
 class Unit;
 
 class ARTIKULATECORE_EXPORT ICourse : public QObject
 {
     Q_OBJECT
     Q_PROPERTY(QString id READ id NOTIFY idChanged)
     Q_PROPERTY(QString title READ title NOTIFY titleChanged)
-    Q_PROPERTY(QString i18nTitle NOTIFY titleChanged)
+    Q_PROPERTY(QString i18nTitle READ i18nTitle NOTIFY titleChanged)
     Q_PROPERTY(QString description READ description NOTIFY descriptionChanged)
-    Q_PROPERTY(Language * language NOTIFY languageChanged)
+    Q_PROPERTY(Language * language READ language NOTIFY languageChanged)
 
 public:
     ICourse(QObject *parent = nullptr)
         : QObject(parent)
     {
     }
     virtual ~ICourse() = default;
     virtual QString id() const = 0;
     virtual QString foreignId() const = 0;
     virtual QString title() const = 0;
     virtual QString i18nTitle() const = 0;
     virtual QString description() const = 0;
     virtual Language * language() const = 0;
     /**
      * @brief Lazy loading unit list
      * @return list of units in course
      */
     virtual QList<Unit *> unitList() = 0;
     virtual QUrl file() const = 0;
 
 Q_SIGNALS:
     void idChanged();
     void titleChanged();
     void descriptionChanged();
     void languageChanged();
     void unitAdded();
     void unitAboutToBeAdded(Unit*,int);
     void unitsRemoved();
     void unitsAboutToBeRemoved(int,int);
 };
 
 Q_DECLARE_INTERFACE(ICourse, "com.kde.artikulate.ICourse/1.0")
 
 #endif // COURSE_H