diff --git a/src/plugins/platforms/xcb/qxcbmime.cpp b/src/plugins/platforms/xcb/qxcbmime.cpp
index 7592eb2887..3ec8fa491f 100644
--- a/src/plugins/platforms/xcb/qxcbmime.cpp
+++ b/src/plugins/platforms/xcb/qxcbmime.cpp
@@ -44,12 +44,6 @@
 #include <QtCore/QBuffer>
 #include <qdebug.h>
 
-#include <X11/Xutil.h>
-
-#undef XCB_ATOM_STRING
-#undef XCB_ATOM_PIXMAP
-#undef XCB_ATOM_BITMAP
-
 QT_BEGIN_NAMESPACE
 
 #if !(defined(QT_NO_DRAGANDDROP) && defined(QT_NO_CLIPBOARD))