diff --git a/webrtc/base/x11windowpicker.cc b/webrtc/base/x11windowpicker.cc
index 21f71c61e3..e588304d03 100644
--- a/webrtc/base/x11windowpicker.cc
+++ b/webrtc/base/x11windowpicker.cc
@@ -21,6 +21,7 @@
 #include <X11/extensions/Xrender.h>
 #include <X11/Xutil.h>
 
+#include "webrtc/base/constructormagic.h"
 #include "webrtc/base/logging.h"
 
 namespace rtc {