diff --git a/umbrello/dotgenerator.h b/umbrello/dotgenerator.h
index 80d42ada8..b0cdbd2f4 100644
--- a/umbrello/dotgenerator.h
+++ b/umbrello/dotgenerator.h
@@ -1,64 +1,64 @@
 /***************************************************************************
  *   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) any later version.                                   *
  *                                                                         *
  *   copyright (C) 2012-2020                                               *
  *   Umbrello UML Modeller Authors <umbrello-devel@kde.org>                *
  ***************************************************************************/
 
 #ifndef DOTGENERATOR_H
 
 class UMLScene;
 #include <QHash>
 #include <QPointF>
 #include <QString>
 
 #define DOTGENERATOR_DEBUG
 /**
  * The class DotGenerator provides export of diagrams as dot files.
  *
  * @author Ralf Habacker <ralf.habacker@freenet.de>
  */
 class DotGenerator
 {
 public:
     DotGenerator();
 
     bool usePosition();
     void setUsePosition(bool state);
 
     bool useFullNodeLabels();
     void setUseFullNodeLabels(bool state);
 
     static bool availableConfigFiles(UMLScene *scene, QHash<QString, QString> &configFiles);
     bool readConfigFile(QString diagramType, const QString &variant = QLatin1String("default"));
 
     bool createDotFile(UMLScene *scene, const QString &fileName, const QString &variant = QLatin1String("default"));
 
     static QString currentDotPath();
     void setGeneratorName(const QString &name);
     QString generatorFullPath();
 
 protected:
     bool findItem(QStringList &params, const QString &search);
     QString fixID(const QString &_id);
     int generatorVersion();
 
     double m_scale;        ///< scale factor
     QString m_configFileName; ///< template filename
     QHash<QString, QString> m_dotParameters;  ///< contains global graph parameters
     QHash<QString, QString> m_edgeParameters; ///< contains global edge parameters
     QHash<QString, QString> m_nodeParameters; ///< contains global node parameters
     QPointF m_origin;
     QString m_generator; ///< name of graphviz generator
     bool m_usePosition; ///< use position tag from dot (not used yet)
     bool m_useFullNodeLabels; ///< use full node labels
     QString m_dotPath;     ///< contains path to generator executable
-    int m_version;         ///< version of graphviz generator
+    int m_version{0};         ///< version of graphviz generator
 
     friend QDebug operator<<(QDebug out, DotGenerator &c);
 };
 
 #endif