diff --git a/src/app/visualization/visualization.h b/src/app/visualization/visualization.h
index 835e46f56..4f702f2cb 100644
--- a/src/app/visualization/visualization.h
+++ b/src/app/visualization/visualization.h
@@ -30,6 +30,7 @@
 #define VISUALIZATION_H
 
 #include <QObject>
+#include <QGraphicsItem>
 #include "../widgets/vapplication.h"
 #include "../widgets/vmaingraphicsscene.h"