diff --git a/src/Gui/InputField.cpp b/src/Gui/InputField.cpp
index 122e324368..2452183827 100644
--- a/src/Gui/InputField.cpp
+++ b/src/Gui/InputField.cpp
@@ -39,6 +39,7 @@
 #include "Command.h"
 #include "InputField.h"
 #include "BitmapFactory.h"
+#include "propertyeditor/PropertyItem.h"
 
 using namespace Gui;
 using namespace App;
diff --git a/src/Gui/QuantitySpinBox.cpp b/src/Gui/QuantitySpinBox.cpp
index e2af8c1d21..e69fe525ac 100644
--- a/src/Gui/QuantitySpinBox.cpp
+++ b/src/Gui/QuantitySpinBox.cpp
@@ -38,6 +38,7 @@
 #include "QuantitySpinBox.h"
 #include "QuantitySpinBox_p.h"
 #include "DlgExpressionInput.h"
+#include "propertyeditor/PropertyItem.h"
 #include "BitmapFactory.h"
 #include "Command.h"
 #include <Base/Tools.h>
diff --git a/src/Gui/iisTaskPanel/src/iisiconlabel.h b/src/Gui/iisTaskPanel/src/iisiconlabel.h
index 0d1ffe13f1..8ce6229c93 100644
--- a/src/Gui/iisTaskPanel/src/iisiconlabel.h
+++ b/src/Gui/iisTaskPanel/src/iisiconlabel.h
@@ -9,6 +9,7 @@
 #define IISICONLABEL_H
 
 #include <QtGui>
+#include <QWidget>
 
 #include "iistaskpanel_global.h"
 
diff --git a/src/Gui/iisTaskPanel/src/iistaskbox.h b/src/Gui/iisTaskPanel/src/iistaskbox.h
index a62d2c93b9..09788d0d84 100644
--- a/src/Gui/iisTaskPanel/src/iistaskbox.h
+++ b/src/Gui/iisTaskPanel/src/iistaskbox.h
@@ -9,6 +9,11 @@
 #define IISTASKBOX_H
 
 #include <QtGui>
+#include <QWidget>
+#include <QFrame>
+#include <QBoxLayout>
+#include <QPaintEvent>
+#include <QPixmap>
 
 #include "iistaskpanel_global.h"
 
diff --git a/src/Gui/iisTaskPanel/src/iistaskgroup.h b/src/Gui/iisTaskPanel/src/iistaskgroup.h
index 522eadc3ef..7f4b5e654f 100644
--- a/src/Gui/iisTaskPanel/src/iistaskgroup.h
+++ b/src/Gui/iisTaskPanel/src/iistaskgroup.h
@@ -9,6 +9,10 @@
 #define IISTASKGROUP_H
 
 #include <QtGui>
+#include <QWidget>
+#include <QFrame>
+#include <QBoxLayout>
+#include <QPaintEvent>
 
 #include "iistaskpanel_global.h"
 
diff --git a/src/Gui/iisTaskPanel/src/iistaskheader.cpp b/src/Gui/iisTaskPanel/src/iistaskheader.cpp
index 31b714cc2c..479df3e7c0 100644
--- a/src/Gui/iisTaskPanel/src/iistaskheader.cpp
+++ b/src/Gui/iisTaskPanel/src/iistaskheader.cpp
@@ -5,6 +5,12 @@
  *                                                                         *
  ***************************************************************************/
 
+#include <QSizePolicy>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QPainter>
+#include <QTimer>
+
 #include "iistaskheader.h"
 #include "iistaskpanelscheme.h"
 #include "iisiconlabel.h"
diff --git a/src/Gui/iisTaskPanel/src/iistaskheader.h b/src/Gui/iisTaskPanel/src/iistaskheader.h
index c64b4b2cdd..cebe26b8ab 100644
--- a/src/Gui/iisTaskPanel/src/iistaskheader.h
+++ b/src/Gui/iisTaskPanel/src/iistaskheader.h
@@ -9,6 +9,10 @@
 #define IISTASKHEADER_H
 
 #include <QtGui>
+#include <QFrame>
+#include <QLabel>
+#include <QEvent>
+#include <QMouseEvent>
 
 #include "iistaskpanel_global.h"
 
diff --git a/src/Gui/iisTaskPanel/src/iistaskpanel.h b/src/Gui/iisTaskPanel/src/iistaskpanel.h
index 4a3d0bb163..a8277d95ff 100644
--- a/src/Gui/iisTaskPanel/src/iistaskpanel.h
+++ b/src/Gui/iisTaskPanel/src/iistaskpanel.h
@@ -20,6 +20,8 @@
 #include <QtGui>
 #include <QtCore>
 #include <QSpacerItem>
+#include <QWidget>
+#include <QPaintEvent>
 
 #include "iistaskpanel_global.h"
 
diff --git a/src/Gui/iisTaskPanel/src/iistaskpanelscheme.h b/src/Gui/iisTaskPanel/src/iistaskpanelscheme.h
index f4e0ef95d2..a66ecb84d5 100644
--- a/src/Gui/iisTaskPanel/src/iistaskpanelscheme.h
+++ b/src/Gui/iisTaskPanel/src/iistaskpanelscheme.h
@@ -9,6 +9,10 @@
 #define IISTASKPANELSCHEME_H
 
 #include <QtGui>
+#include <QColor>
+#include <QPen>
+#include <QBrush>
+#include <QSize>
 
 #include "iistaskpanel_global.h"