diff --git a/src/libs/ifc/ifcdef.cpp b/src/libs/ifc/ifcdef.cpp
index f93a02296401..402eb78f417b 100644
--- a/src/libs/ifc/ifcdef.cpp
+++ b/src/libs/ifc/ifcdef.cpp
@@ -58,6 +58,7 @@
 #include <QBrush>
 #include <QIcon>
 #include <QMap>
+#include <QObject>
 #include <QPainter>
 #include <QPen>
 #include <QPixmap>