diff --git a/plugins/meson/mesonoptions.h b/plugins/meson/mesonoptions.h
index d5056d38c7..9bb0ba9136 100644
--- a/plugins/meson/mesonoptions.h
+++ b/plugins/meson/mesonoptions.h
@@ -1,178 +1,179 @@
 /* This file is part of KDevelop
     Copyright 2019 Daniel Mensinger <daniel@mensinger-ka.de>
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) 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 Library 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.
 */
 
 #pragma once
 
 #include <QString>
+#include <QStringList>
 #include <QVector>
 #include <memory>
 
 class QJsonArray;
 class QJsonObject;
 class QWidget;
 class MesonOptionBase;
 class MesonOptions;
 
 using MesonOptionPtr = std::shared_ptr<MesonOptionBase>;
 using MesonOptsPtr = std::shared_ptr<MesonOptions>;
 
 /*!
  * Base class for a single meson option.
  */
 class MesonOptionBase
 {
 public:
     enum Section { CORE, BACKEND, BASE, COMPILER, DIRECTORY, USER, TEST };
     enum Type { ARRAY, BOOLEAN, COMBO, INTEGER, STRING };
 
 public:
     explicit MesonOptionBase(QString name, QString description, Section section);
     virtual ~MesonOptionBase();
 
     virtual Type type() const = 0;
     virtual QString value() const = 0;
     virtual QString initialValue() const = 0;
     virtual void reset() = 0;
 
     QString name() const;
     QString description() const;
     Section section() const;
 
     QString mesonArg() const;
     bool isUpdated() const;
 
     static MesonOptionPtr fromJSON(QJsonObject const& obj);
 
 private:
     QString m_name;
     QString m_description;
     Section m_section;
 };
 
 class MesonOptionArray : public MesonOptionBase
 {
 public:
     MesonOptionArray(QString name, QString description, Section section, QStringList value);
 
     MesonOptionBase::Type type() const override;
     QString value() const override;
     QString initialValue() const override;
     void reset() override;
 
     QStringList rawValue() const;
     void setValue(QStringList val);
 
 private:
     QStringList m_value;
     QStringList m_initialValue;
 };
 
 class MesonOptionBool : public MesonOptionBase
 {
 public:
     MesonOptionBool(QString name, QString description, Section section, bool value);
 
     MesonOptionBase::Type type() const override;
     QString value() const override;
     QString initialValue() const override;
     void reset() override;
 
     bool rawValue() const;
     void setValue(bool val);
 
 private:
     bool m_value;
     bool m_initialValue;
 };
 
 class MesonOptionCombo : public MesonOptionBase
 {
 public:
     MesonOptionCombo(QString name, QString description, Section section, QString value, QStringList choices);
 
     MesonOptionBase::Type type() const override;
     QString value() const override;
     QString initialValue() const override;
     void reset() override;
 
     QString rawValue() const;
     void setValue(QString val);
     QStringList choices() const;
 
 private:
     QString m_value;
     QString m_initialValue;
     QStringList m_choices;
 };
 
 class MesonOptionInteger : public MesonOptionBase
 {
 public:
     MesonOptionInteger(QString name, QString description, Section section, int value);
 
     MesonOptionBase::Type type() const override;
     QString value() const override;
     QString initialValue() const override;
     void reset() override;
 
     int rawValue() const;
     void setValue(int val);
 
 private:
     int m_value;
     int m_initialValue;
 };
 
 class MesonOptionString : public MesonOptionBase
 {
 public:
     MesonOptionString(QString name, QString description, Section section, QString value);
 
     MesonOptionBase::Type type() const override;
     QString value() const override;
     QString initialValue() const override;
     void reset() override;
 
     QString rawValue() const;
     void setValue(QString val);
 
 private:
     QString m_value;
     QString m_initialValue;
 };
 
 /*!
  * Container class for all meson project options.
  */
 class MesonOptions
 {
 public:
     explicit MesonOptions(QJsonArray const& arr);
 
     int numChanged() const;
     QStringList getMesonArgs() const;
     void print() const;
 
     QVector<MesonOptionPtr> options();
 
 private:
     QVector<MesonOptionPtr> m_options;
 
     void fromJSON(QJsonArray const& arr);
 };