diff --git a/Libs/Widgets/ctkPathListButtonsWidget_p.h b/Libs/Widgets/ctkPathListButtonsWidget_p.h
index ccb69f38d5..7b3a65bfbb 100644
--- a/Libs/Widgets/ctkPathListButtonsWidget_p.h
+++ b/Libs/Widgets/ctkPathListButtonsWidget_p.h
@@ -23,6 +23,7 @@
 
 // Qt includes
 #include <QObject>
+#include <QItemSelection>
 
 // CTK includes
 #include "ui_ctkPathListButtonsWidget.h"