diff --git a/examples/embedded/lightmaps/slippymap.cpp b/examples/embedded/lightmaps/slippymap.cpp
index 66957bea18b..038738c69e3 100644
--- a/examples/embedded/lightmaps/slippymap.cpp
+++ b/examples/embedded/lightmaps/slippymap.cpp
@@ -53,10 +53,18 @@
 #include "slippymap.h"
 #include "qmath.h"
 
+#ifdef QT_NAMESPACE
+QT_BEGIN_NAMESPACE
+size_t qHash(const QT_NAMESPACE::QPoint& p)
+#else
 size_t qHash(const QPoint& p)
+#endif
 {
     return p.x() * 17 ^ p.y();
 }
+#ifdef QT_NAMESPACE
+QT_END_NAMESPACE
+#endif
 
 // tile size in pixels
 const int tdim = 256;
diff --git a/examples/embedded/lightmaps/slippymap.h b/examples/embedded/lightmaps/slippymap.h
index db95ceb6847..202d00c7e46 100644
--- a/examples/embedded/lightmaps/slippymap.h
+++ b/examples/embedded/lightmaps/slippymap.h
@@ -55,8 +55,10 @@
 #include <QPixmap>
 #include <QUrl>
 
+QT_BEGIN_NAMESPACE
 class QNetworkReply;
 class QPainter;
+QT_END_NAMESPACE
 
 class SlippyMap: public QObject
 {
@@ -93,4 +95,5 @@ private:
     QUrl m_url;
 };
 
-#endif
\ No newline at end of file
+#endif
+