diff --git a/src/plugins/platforms/xcb/qdri2context.cpp b/src/plugins/platforms/xcb/qdri2context.cpp
index 5f4aff5455..31e613d4ba 100644
--- a/src/plugins/platforms/xcb/qdri2context.cpp
+++ b/src/plugins/platforms/xcb/qdri2context.cpp
@@ -59,6 +59,8 @@
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 
+QT_BEGIN_NAMESPACE
+
 class QDri2ContextPrivate
 {
 public:
@@ -267,3 +269,5 @@ void * QDri2Context::eglContext() const
     Q_D(const QDri2Context);
     return d->eglContext;
 }
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/xcb/qdri2context.h b/src/plugins/platforms/xcb/qdri2context.h
index ec8b251c3f..6b93a0a93f 100644
--- a/src/plugins/platforms/xcb/qdri2context.h
+++ b/src/plugins/platforms/xcb/qdri2context.h
@@ -44,11 +44,13 @@
 
 #include <QtGui/QPlatformOpenGLContext>
 
+struct xcb_dri2_dri2_buffer_t;
+
+QT_BEGIN_NAMESPACE
+
 class QXcbWindow;
 class QDri2ContextPrivate;
 
-struct xcb_dri2_dri2_buffer_t;
-
 class QDri2Context : public QPlatformOpenGLContext
 {
     Q_DECLARE_PRIVATE(QDri2Context);
@@ -74,4 +76,6 @@ private:
     Q_DISABLE_COPY(QDri2Context)
 };
 
+QT_END_NAMESPACE
+
 #endif // QDRI2CONTEXT_H
diff --git a/src/plugins/platforms/xcb/qglxintegration.cpp b/src/plugins/platforms/xcb/qglxintegration.cpp
index 41bceaf406..550a5e4184 100644
--- a/src/plugins/platforms/xcb/qglxintegration.cpp
+++ b/src/plugins/platforms/xcb/qglxintegration.cpp
@@ -58,6 +58,8 @@
 #include <dlfcn.h>
 #endif
 
+QT_BEGIN_NAMESPACE
+
 QGLXContext::QGLXContext(QXcbScreen *screen, const QSurfaceFormat &format, QPlatformOpenGLContext *share)
     : QPlatformOpenGLContext()
     , m_screen(screen)
@@ -134,3 +136,5 @@ QSurfaceFormat QGLXContext::format() const
 {
     return m_format;
 }
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/xcb/qglxintegration.h b/src/plugins/platforms/xcb/qglxintegration.h
index bbe67b653a..2c8fea5874 100644
--- a/src/plugins/platforms/xcb/qglxintegration.h
+++ b/src/plugins/platforms/xcb/qglxintegration.h
@@ -52,6 +52,8 @@
 
 #include <GL/glx.h>
 
+QT_BEGIN_NAMESPACE
+
 class QGLXContext : public QPlatformOpenGLContext
 {
 public:
@@ -73,4 +75,6 @@ private:
     QSurfaceFormat m_format;
 };
 
+QT_END_NAMESPACE
+
 #endif
diff --git a/src/plugins/platforms/xcb/qxcbbackingstore.cpp b/src/plugins/platforms/xcb/qxcbbackingstore.cpp
index 2c6ec62475..fb8384212d 100644
--- a/src/plugins/platforms/xcb/qxcbbackingstore.cpp
+++ b/src/plugins/platforms/xcb/qxcbbackingstore.cpp
@@ -58,6 +58,8 @@
 #include <qpainter.h>
 #include <qscreen.h>
 
+QT_BEGIN_NAMESPACE
+
 class QXcbShmImage : public QXcbObject
 {
 public:
@@ -321,3 +323,4 @@ bool QXcbBackingStore::scroll(const QRegion &area, int dx, int dy)
     return true;
 }
 
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/xcb/qxcbbackingstore.h b/src/plugins/platforms/xcb/qxcbbackingstore.h
index db94d26b09..a389f97ac3 100644
--- a/src/plugins/platforms/xcb/qxcbbackingstore.h
+++ b/src/plugins/platforms/xcb/qxcbbackingstore.h
@@ -48,6 +48,8 @@
 
 #include "qxcbobject.h"
 
+QT_BEGIN_NAMESPACE
+
 class QXcbShmImage;
 
 class QXcbBackingStore : public QXcbObject, public QPlatformBackingStore
@@ -69,4 +71,6 @@ private:
     bool m_syncingResize;
 };
 
+QT_END_NAMESPACE
+
 #endif
diff --git a/src/plugins/platforms/xcb/qxcbconnection_maemo.cpp b/src/plugins/platforms/xcb/qxcbconnection_maemo.cpp
index 4ab7865758..327f7c54f6 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_maemo.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection_maemo.cpp
@@ -49,6 +49,8 @@
 #include <X11/extensions/XI2proto.h>
 #include <X11/Xatom.h>
 
+QT_BEGIN_NAMESPACE
+
 // Define it here to work around XLib defining Bool and stuff.
 // We can't declare those variables in the header without facing include order headaches.
 struct XInput2Data {
@@ -290,6 +292,8 @@ void QXcbConnection::handleGenericEvent(xcb_ge_event_t *event)
     }
 }
 
+QT_END_NAMESPACE
+
 #endif // XCB_USE_XINPUT2_MAEMO
 
 
diff --git a/src/plugins/platforms/xcb/qxcbeglsurface.h b/src/plugins/platforms/xcb/qxcbeglsurface.h
index a1e6c148a2..a372cd9830 100644
--- a/src/plugins/platforms/xcb/qxcbeglsurface.h
+++ b/src/plugins/platforms/xcb/qxcbeglsurface.h
@@ -44,6 +44,8 @@
 
 #include <EGL/egl.h>
 
+QT_BEGIN_NAMESPACE
+
 class QXcbEGLSurface
 {
 public:
@@ -65,4 +67,6 @@ private:
     EGLSurface m_surface;
 };
 
+QT_END_NAMESPACE
+
 #endif
diff --git a/src/plugins/platforms/xcb/qxcbintegration.cpp b/src/plugins/platforms/xcb/qxcbintegration.cpp
index aa5c7e444b..e6b9a18323 100644
--- a/src/plugins/platforms/xcb/qxcbintegration.cpp
+++ b/src/plugins/platforms/xcb/qxcbintegration.cpp
@@ -80,6 +80,8 @@
 #include <QtGui/QScreen>
 #include <QtGui/QPlatformAccessibility>
 
+QT_BEGIN_NAMESPACE
+
 QXcbIntegration::QXcbIntegration(const QStringList &parameters)
     : m_eventDispatcher(createUnixEventDispatcher())
 {
@@ -239,3 +241,5 @@ QPlatformAccessibility *QXcbIntegration::accessibility() const
 {
     return m_accessibility;
 }
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/xcb/qxcbkeyboard.cpp b/src/plugins/platforms/xcb/qxcbkeyboard.cpp
index 1f13daea0a..a2a519c793 100644
--- a/src/plugins/platforms/xcb/qxcbkeyboard.cpp
+++ b/src/plugins/platforms/xcb/qxcbkeyboard.cpp
@@ -261,6 +261,8 @@
 #define QTOPIAXK_Hangup         0x1100060F
 #define QTOPIAXK_Flip           0x11000610
 
+QT_BEGIN_NAMESPACE
+
 // keyboard mapping table
 static const unsigned int KeyTbl[] = {
 
@@ -1136,3 +1138,5 @@ void QXcbKeyboard::handleMappingNotifyEvent(const xcb_mapping_notify_event_t *ev
     xcb_refresh_keyboard_mapping(m_key_symbols, const_cast<xcb_mapping_notify_event_t *>(event));
     setupModifiers();
 }
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/xcb/qxcbobject.h b/src/plugins/platforms/xcb/qxcbobject.h
index 089c76ef94..a594066545 100644
--- a/src/plugins/platforms/xcb/qxcbobject.h
+++ b/src/plugins/platforms/xcb/qxcbobject.h
@@ -44,6 +44,8 @@
 
 #include "qxcbconnection.h"
 
+QT_BEGIN_NAMESPACE
+
 class QXcbObject
 {
 public:
@@ -59,4 +61,6 @@ private:
     QXcbConnection *m_connection;
 };
 
+QT_END_NAMESPACE
+
 #endif
diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp
index 386dbdc49f..1336ddb32a 100644
--- a/src/plugins/platforms/xcb/qxcbscreen.cpp
+++ b/src/plugins/platforms/xcb/qxcbscreen.cpp
@@ -48,6 +48,8 @@
 
 #include <QDebug>
 
+QT_BEGIN_NAMESPACE
+
 QXcbScreen::QXcbScreen(QXcbConnection *connection, xcb_screen_t *screen, int number)
     : QXcbObject(connection)
     , m_screen(screen)
@@ -354,3 +356,5 @@ QString QXcbScreen::name() const
 {
     return connection()->displayName() + QLatin1String(".") + QString::number(screenNumber());
 }
+
+QT_END_NAMESPACE