diff --git a/sheets/plugins/calendar/CalendarToolWidget.cpp b/sheets/plugins/calendar/CalendarToolWidget.cpp
index b10b23022a2..0c5eeb68cf3 100644
--- a/sheets/plugins/calendar/CalendarToolWidget.cpp
+++ b/sheets/plugins/calendar/CalendarToolWidget.cpp
@@ -1,141 +1,142 @@
 /***************************************************************************
 *   Copyright (C) 2005 by Raphael Langerhorst <raphael-langerhorst@gmx.at>*
 *                                                                         *
 *   Permission is hereby granted, free of charge, to any person obtaining *
 *   a copy of this software and associated documentation files (the       *
 *   "Software"), to deal in the Software without restriction, including   *
 *   without limitation the rights to use, copy, modify, merge, publish,   *
 *   distribute, sublicense, and/or sell copies of the Software, and to    *
 *   permit persons to whom the Software is furnished to do so, subject to *
 *   the following conditions:                                             *
 *                                                                         *
 *   The above copyright notice and this permission notice shall be        *
 *   included in all copies or substantial portions of the Software.       *
 *                                                                         *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       *
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    *
 *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*
 *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR     *
 *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, *
 *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR *
 *   OTHER DEALINGS IN THE SOFTWARE.                                       *
 ***************************************************************************/
 
 #include "CalendarToolWidget.h"
 
 #include "SheetsDebug.h"
 
 #include <KoIcon.h>
 
 #include <kdatepicker.h>
 
 #include <QPushButton>
+#include <QDate>
 
 namespace Calligra
 {
 namespace Sheets
 {
 
 CalendarToolWidget::CalendarToolWidget(QWidget* parent)
         : QDialog(parent)
 {
     setupUi(this);
     this->m_datePicker = 0;
 
     //we start with a default calendar for the current month;
 
     QDate first_day_in_month = QDate::currentDate();
     first_day_in_month.setYMD(first_day_in_month.year(), first_day_in_month.month(), 1);
 
     QDate last_day_in_month(first_day_in_month.year(), first_day_in_month.month(), first_day_in_month.daysInMonth());
 
     this->m_startDateWidget->setDate(first_day_in_month);
     this->m_endDateWidget->setDate(last_day_in_month);
 
     const QIcon calendarIcon = koIcon("x-office-calendar");
     this->m_selectStartDateButton->setIcon(calendarIcon);
     this->m_selectEndDateButton->setIcon(calendarIcon);
 
     connect(this->m_selectStartDateButton, SIGNAL(clicked()), this, SLOT(showStartDatePicker()));
     connect(this->m_selectEndDateButton, SIGNAL(clicked()), this, SLOT(showEndDatePicker()));
 
     connect(this->m_insertButton, SIGNAL(clicked()), this, SLOT(emitInsertCalendar()));
 }
 
 CalendarToolWidget::~CalendarToolWidget()
 {
 }
 
 bool CalendarToolWidget::buildDatePickerFrame()
 {
     delete m_datePicker; //destroyed signal is connected to datePickerDeleted()
 
     m_datePicker = new KDatePicker();
 
     Q_ASSERT(m_datePicker);
 
     if (!m_datePicker)
         return false;
 
     connect(m_datePicker, SIGNAL(destroyed()), this, SLOT(datePickerDeleted()));
 
     const QPoint position = mapToGlobal(pos());
     m_datePicker->move(position.x() + this->width(), position.y());
     m_datePicker->show();
 
     return true;
 }
 
 void CalendarToolWidget::datePickerDeleted()
 {
     debugSheets << "date picker deleted";
     m_datePicker = 0;
 }
 
 void CalendarToolWidget::emitInsertCalendar()
 {
     if (m_datePicker)
         m_datePicker->deleteLater();
     emit insertCalendar(startDate(), endDate());
 }
 
 void CalendarToolWidget::showStartDatePicker()
 {
     if (buildDatePickerFrame()) {
         connect(m_datePicker, SIGNAL(dateSelected(QDate)), this, SLOT(setStartDate(QDate)));
         connect(m_datePicker, SIGNAL(dateEntered(QDate)), this, SLOT(setStartDate(QDate)));
         m_datePicker->setDate(startDate());
     }
 }
 
 void CalendarToolWidget::showEndDatePicker()
 {
     if (buildDatePickerFrame()) {
         connect(m_datePicker, SIGNAL(dateSelected(QDate)), this, SLOT(setEndDate(QDate)));
         connect(m_datePicker, SIGNAL(dateEntered(QDate)), this, SLOT(setEndDate(QDate)));
         m_datePicker->setDate(endDate());
     }
 }
 
 void CalendarToolWidget::setStartDate(const QDate& date)
 {
     this->m_startDateWidget->setDate(date);
 }
 
 void CalendarToolWidget::setEndDate(const QDate& date)
 {
     this->m_endDateWidget->setDate(date);
 }
 
 QDate CalendarToolWidget::startDate() const
 {
     return this->m_startDateWidget->date();
 }
 
 QDate CalendarToolWidget::endDate() const
 {
     return this->m_endDateWidget->date();
 }
 
 } // namespace Sheets
 } // namespace Calligra