diff --git a/src/lib/positionsource/positionsource.h b/src/lib/positionsource/positionsource.h
index 1b45e91..53bb75d 100644
--- a/src/lib/positionsource/positionsource.h
+++ b/src/lib/positionsource/positionsource.h
@@ -1,121 +1,121 @@
 /*
  * Copyright 2019 Patrick José Pereira <patrickjp@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 2.1 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 6 of version 3 of the license.
  *
  * 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #pragma once
 
 #include <QGeoPositionInfoSource>
 #include <QSharedPointer>
 
 class QJSEngine;
 class QQmlEngine;
 
 /**
  * @brief Manage the position source of the ground control station.
  *
  */
 class PositionSource : public QObject
 {
     Q_OBJECT
 
     Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged)
     Q_PROPERTY(QGeoCoordinate coordinate READ coordinate NOTIFY coordinateChanged)
 
 public:
     /**
      * @brief Return PositionSource status, if it's enabled.
      *
      * @return true PositionSource is enable and working.
      * @return false Positionsource is disabled.
      */
     bool enabled() const;
 
     /**
      * @brief Turn PositionSource to enable or disable.
      *
      * @param enabled
      */
     void setEnabled(bool enabled);
 
     /**
      * @brief Set a new position info.
      *
      * @param geoPositionInfo
      */
     void setPositionInfo(const QGeoPositionInfo &geoPositionInfo);
 
     /**
      * @brief Return the last valid coordinate.
      *
      * @return QGeoCoordinate
      */
     QGeoCoordinate coordinate() const;
 
     /**
      * @brief Return the position source for this class.
      *
      * @return const QGeoPositionInfoSource*
      */
     const QGeoPositionInfoSource *positionInfoSource() const;
 
     /**
      * @brief Return PositionSource pointer.
      *
      * @return PositionSource*
      */
     static PositionSource &self();
 
     /**
      * @brief Return a pointer of this singleton to the qml register function.
      *
      * @param engine
      * @param scriptEngine
      * @return QObject*
      */
     static QObject *qmlSingletonRegister(QQmlEngine *engine, QJSEngine *scriptEngine);
 
 Q_SIGNALS:
     void enabledChanged(bool enabled);
     void coordinateChanged(const QGeoCoordinate &geoCoordinate);
 
 private:
     Q_DISABLE_COPY(PositionSource)
     /**
      * @brief Construct a new Position Source object.
      *
      */
     PositionSource();
 
     /**
      * @brief Create the position source for this class.
      *
      */
     void createPositionSource();
 
     /**
      * @brief Set position source error type.
      *
      * @param positioningError
      */
-    void setPositionSourceError(QGeoPositionInfoSource::Error positioningError);
+    static void setPositionSourceError(QGeoPositionInfoSource::Error positioningError);
 
     bool m_enabled;
     QGeoCoordinate m_geoCoordinate;
     QSharedPointer<QGeoPositionInfoSource> m_geoPositionSource;
 };