diff --git a/src/plugins/platforms/winrt/qwinrteglcontext.cpp b/src/plugins/platforms/winrt/qwinrteglcontext.cpp
index fd90582119f..0832fbb5866 100644
--- a/src/plugins/platforms/winrt/qwinrteglcontext.cpp
+++ b/src/plugins/platforms/winrt/qwinrteglcontext.cpp
@@ -33,6 +33,9 @@
 
 #include "qwinrteglcontext.h"
 
+#define EGL_EGLEXT_PROTOTYPES
+#include "EGL/eglext.h"
+
 QT_BEGIN_NAMESPACE
 
 QWinRTEGLContext::QWinRTEGLContext(const QSurfaceFormat &format, QPlatformOpenGLContext *share, EGLDisplay display, EGLSurface surface, EGLConfig config)
@@ -40,6 +43,17 @@ QWinRTEGLContext::QWinRTEGLContext(const QSurfaceFormat &format, QPlatformOpenGL
 {
 }
 
+void QWinRTEGLContext::swapBuffers(QPlatformSurface *surface)
+{
+#ifdef Q_OS_WINPHONE
+    const QSize size = surface->surface()->size();
+    eglPostSubBufferNV(eglDisplay(), eglSurfaceForPlatformSurface(surface),
+                       0, 0, size.width(), size.height());
+#else
+    eglSwapBuffers(eglDisplay(), eglSurfaceForPlatformSurface(surface));
+#endif
+}
+
 EGLSurface QWinRTEGLContext::eglSurfaceForPlatformSurface(QPlatformSurface *surface)
 {
     if (surface->surface()->surfaceClass() == QSurface::Window) {
diff --git a/src/plugins/platforms/winrt/qwinrteglcontext.h b/src/plugins/platforms/winrt/qwinrteglcontext.h
index bec9c190890..9b1ef37d1bf 100644
--- a/src/plugins/platforms/winrt/qwinrteglcontext.h
+++ b/src/plugins/platforms/winrt/qwinrteglcontext.h
@@ -43,6 +43,7 @@ class QWinRTEGLContext : public QEGLPlatformContext
 public:
     explicit QWinRTEGLContext(const QSurfaceFormat &format, QPlatformOpenGLContext *share, EGLDisplay display, EGLSurface surface, EGLConfig config);
 
+    void swapBuffers(QPlatformSurface *surface) Q_DECL_OVERRIDE;
     QFunctionPointer getProcAddress(const QByteArray &procName) Q_DECL_OVERRIDE;
 
 protected: