diff --git a/retroshare-gui/src/gui/TransfersDialog.h b/retroshare-gui/src/gui/TransfersDialog.h
index e0e111cc3..045ca4e96 100644
--- a/retroshare-gui/src/gui/TransfersDialog.h
+++ b/retroshare-gui/src/gui/TransfersDialog.h
@@ -28,6 +28,7 @@
 #include <QObject>
 #include <QModelIndex>
 #include <QVariant>
+#include <stdint.h>
 
 #include "mainpage.h"
 #include "ui_TransfersDialog.h"