diff --git a/core/subsurface-qt/DiveObjectHelper.h b/core/subsurface-qt/DiveObjectHelper.h
index b4b7e2668..d0a90a32b 100644
--- a/core/subsurface-qt/DiveObjectHelper.h
+++ b/core/subsurface-qt/DiveObjectHelper.h
@@ -7,6 +7,7 @@
 #include <QObject>
 #include <QString>
 #include <QStringList>
+#include <QVariant>
 
 class DiveObjectHelper : public QObject {
 	Q_OBJECT