diff --git a/gui/chronosharegui.h b/gui/chronosharegui.h
index 48e2bc3..76b73ba 100644
--- a/gui/chronosharegui.h
+++ b/gui/chronosharegui.h
@@ -31,6 +31,7 @@
 #include <QFileDialog>
 #include <QCloseEvent>
 #include <QMessageBox>
+#include <QApplication>
 
 class ChronoShareGui : public QWidget
 {