diff --git a/include/qwt_painter_command.h b/include/qwt_painter_command.h
index 2da597a..096abfc 100644
--- a/include/qwt_painter_command.h
+++ b/include/qwt_painter_command.h
@@ -14,6 +14,7 @@
 #include <qpaintengine.h>
 #include <qpixmap.h>
 #include <qimage.h>
+#include <qpainterpath.h>
 #include <qpolygon.h>
 
 class QPainterPath;
diff --git a/src/qwt_compass_rose.cpp b/src/qwt_compass_rose.cpp
index 21a35f2..d671759 100644
--- a/src/qwt_compass_rose.cpp
+++ b/src/qwt_compass_rose.cpp
@@ -11,6 +11,7 @@
 #include "qwt_point_polar.h"
 #include "qwt_painter.h"
 #include <qpainter.h>
+#include <qpainterpath.h>
 
 static QPointF qwtIntersection( 
     QPointF p11, QPointF p12, QPointF p21, QPointF p22 )
diff --git a/src/qwt_dial_needle.cpp b/src/qwt_dial_needle.cpp
index 1b53a3d..694f7f2 100644
--- a/src/qwt_dial_needle.cpp
+++ b/src/qwt_dial_needle.cpp
@@ -13,6 +13,7 @@
 #include "qwt_painter.h"
 #include <qapplication.h>
 #include <qpainter.h>
+#include <qpainterpath.h>
 
 #if QT_VERSION < 0x040601
 #define qFastSin(x) qSin(x)
diff --git a/src/qwt_null_paintdevice.cpp b/src/qwt_null_paintdevice.cpp
index db1611d..b9b5daf 100644
--- a/src/qwt_null_paintdevice.cpp
+++ b/src/qwt_null_paintdevice.cpp
@@ -9,6 +9,7 @@
 
 #include "qwt_null_paintdevice.h"
 #include <qpaintengine.h>
+#include <qpainterpath.h>
 #include <qpixmap.h>
 
 class QwtNullPaintDevice::PrivateData
diff --git a/src/qwt_painter.cpp b/src/qwt_painter.cpp
index 55171db..7c7f2dc 100644
--- a/src/qwt_painter.cpp
+++ b/src/qwt_painter.cpp
@@ -17,6 +17,7 @@
 #include <qframe.h>
 #include <qrect.h>
 #include <qpainter.h>
+#include <qpainterpath.h>
 #include <qpalette.h>
 #include <qpaintdevice.h>
 #include <qpixmap.h>
diff --git a/src/qwt_plot_glcanvas.cpp b/src/qwt_plot_glcanvas.cpp
index e6f7447..37e3b81 100644
--- a/src/qwt_plot_glcanvas.cpp
+++ b/src/qwt_plot_glcanvas.cpp
@@ -12,6 +12,7 @@
 #include "qwt_painter.h"
 #include <qevent.h>
 #include <qpainter.h>
+#include <qpainterpath.h>
 #include <qdrawutil.h>
 #include <qstyle.h>
 #include <qstyleoption.h>
diff --git a/src/qwt_plot_panner.cpp b/src/qwt_plot_panner.cpp
index 62a75a2..ee15094 100644
--- a/src/qwt_plot_panner.cpp
+++ b/src/qwt_plot_panner.cpp
@@ -12,6 +12,7 @@
 #include "qwt_plot.h"
 #include "qwt_painter.h"
 #include <qbitmap.h>
+#include <qpainterpath.h>
 #include <qstyle.h>
 #include <qstyleoption.h>
 
diff --git a/src/qwt_plot_renderer.cpp b/src/qwt_plot_renderer.cpp
index 3416f98..33c4c93 100644
--- a/src/qwt_plot_renderer.cpp
+++ b/src/qwt_plot_renderer.cpp
@@ -18,6 +18,7 @@
 #include "qwt_text_label.h"
 #include "qwt_math.h"
 #include <qpainter.h>
+#include <qpainterpath.h>
 #include <qpaintengine.h>
 #include <qtransform.h>
 #include <qprinter.h>
diff --git a/src/qwt_widget_overlay.cpp b/src/qwt_widget_overlay.cpp
index d2b4220..cdc3d16 100644
--- a/src/qwt_widget_overlay.cpp
+++ b/src/qwt_widget_overlay.cpp
@@ -10,6 +10,7 @@
 #include "qwt_widget_overlay.h"
 #include "qwt_painter.h"
 #include <qpainter.h>
+#include <qpainterpath.h>
 #include <qpaintengine.h>
 #include <qimage.h>
 #include <qevent.h>