diff --git a/examples/corelib/threads/queuedcustomtype/queuedcustomtype.pro b/examples/corelib/threads/queuedcustomtype/queuedcustomtype.pro
index 77421eb6380..8b91fb9ac7d 100644
--- a/examples/corelib/threads/queuedcustomtype/queuedcustomtype.pro
+++ b/examples/corelib/threads/queuedcustomtype/queuedcustomtype.pro
@@ -8,7 +8,7 @@ SOURCES   = main.cpp \
 QT += widgets
 
 # install
-target.path = $$[QT_INSTALL_EXAMPLES]/corelib/threads/mandelbrot
+target.path = $$[QT_INSTALL_EXAMPLES]/corelib/threads/queuedcustomtype
 INSTALLS += target
 
 
diff --git a/examples/corelib/threads/queuedcustomtype/window.h b/examples/corelib/threads/queuedcustomtype/window.h
index b1e578faa00..52c67428dd0 100644
--- a/examples/corelib/threads/queuedcustomtype/window.h
+++ b/examples/corelib/threads/queuedcustomtype/window.h
@@ -44,8 +44,10 @@
 #include <QWidget>
 #include "renderthread.h"
 
+QT_BEGIN_NAMESPACE
 class QLabel;
 class QPushButton;
+QT_END_NAMESPACE
 
 //! [Window class definition]
 class Window : public QWidget
diff --git a/examples/corelib/threads/threads.pro b/examples/corelib/threads/threads.pro
index e47da84a06b..b9e17a84305 100644
--- a/examples/corelib/threads/threads.pro
+++ b/examples/corelib/threads/threads.pro
@@ -4,4 +4,6 @@ CONFIG += no_docs_target
 SUBDIRS       = semaphores \
                 waitconditions
 
-qtHaveModule(widgets): SUBDIRS += mandelbrot
+qtHaveModule(widgets): SUBDIRS += \
+    mandelbrot \
+    queuedcustomtype