diff --git a/retroshare-gui/src/gui/gxschannels/GxsChannelDialog.cpp b/retroshare-gui/src/gui/gxschannels/GxsChannelDialog.cpp
index 47317c801..b5d8b4ffc 100644
--- a/retroshare-gui/src/gui/gxschannels/GxsChannelDialog.cpp
+++ b/retroshare-gui/src/gui/gxschannels/GxsChannelDialog.cpp
@@ -36,6 +36,7 @@
 #include "gui/common/GroupTreeWidget.h"
 #include "util/qtthreadsutils.h"
 #include "util/misc.h"
+#include "util/RsQtVersion.h"
 
 // class GxsChannelGroupInfoData : public RsUserdata
 // {
diff --git a/retroshare-gui/src/util/RsQtVersion.h b/retroshare-gui/src/util/RsQtVersion.h
index 3631a0bac..e313f6054 100644
--- a/retroshare-gui/src/util/RsQtVersion.h
+++ b/retroshare-gui/src/util/RsQtVersion.h
@@ -70,4 +70,8 @@ class QLabel;
 extern QPixmap QLabel_pixmap(QLabel* label);
 #endif
 
+#if QT_VERSION < QT_VERSION_CHECK (5, 8, 0)
+#define Q_FALLTHROUGH() (void)0
+#endif
+
 #endif