diff --git a/src/platformsupport/eglconvenience/qeglplatformcontext_p.h b/src/platformsupport/eglconvenience/qeglplatformcontext_p.h
index bd1174620c..50c264e1dc 100644
--- a/src/platformsupport/eglconvenience/qeglplatformcontext_p.h
+++ b/src/platformsupport/eglconvenience/qeglplatformcontext_p.h
@@ -64,7 +64,7 @@ public:
     bool makeCurrent(QPlatformSurface *surface) Q_DECL_OVERRIDE;
     void doneCurrent() Q_DECL_OVERRIDE;
     void swapBuffers(QPlatformSurface *surface) Q_DECL_OVERRIDE;
-    void (*getProcAddress(const QByteArray &procName)) () Q_DECL_OVERRIDE;
+    QFunctionPointer getProcAddress(const QByteArray &procName) Q_DECL_OVERRIDE;
 
     QSurfaceFormat format() const Q_DECL_OVERRIDE;
     bool isSharing() const Q_DECL_OVERRIDE { return m_shareContext != EGL_NO_CONTEXT; }
diff --git a/src/plugins/platforms/offscreen/qoffscreenintegration_x11.h b/src/plugins/platforms/offscreen/qoffscreenintegration_x11.h
index 9ead6287fb..644ff7f7de 100644
--- a/src/plugins/platforms/offscreen/qoffscreenintegration_x11.h
+++ b/src/plugins/platforms/offscreen/qoffscreenintegration_x11.h
@@ -85,7 +85,7 @@ public:
     bool makeCurrent(QPlatformSurface *surface) Q_DECL_OVERRIDE;
     void doneCurrent() Q_DECL_OVERRIDE;
     void swapBuffers(QPlatformSurface *surface) Q_DECL_OVERRIDE;
-    void (*getProcAddress(const QByteArray &procName)) () Q_DECL_OVERRIDE;
+    QFunctionPointer getProcAddress(const QByteArray &procName) Q_DECL_OVERRIDE;
 
     QSurfaceFormat format() const Q_DECL_OVERRIDE;
     bool isSharing() const Q_DECL_OVERRIDE;
diff --git a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.h b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.h
index 15e11e7d0c..7725855327 100644
--- a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.h
+++ b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.h
@@ -57,7 +57,7 @@ public:
     bool makeCurrent(QPlatformSurface *surface) Q_DECL_OVERRIDE;
     void doneCurrent() Q_DECL_OVERRIDE;
     void swapBuffers(QPlatformSurface *surface) Q_DECL_OVERRIDE;
-    void (*getProcAddress(const QByteArray &procName)) () Q_DECL_OVERRIDE;
+    QFunctionPointer getProcAddress(const QByteArray &procName) Q_DECL_OVERRIDE;
 
     QSurfaceFormat format() const Q_DECL_OVERRIDE;
     bool isSharing() const Q_DECL_OVERRIDE;