diff --git a/src/ad_interface.h b/src/ad_interface.h
index bf86b511..6322e2b1 100644
--- a/src/ad_interface.h
+++ b/src/ad_interface.h
@@ -2,6 +2,7 @@
 #ifndef AD_INTERFACE_H
 #define AD_INTERFACE_H
 
+#include <QObject>
 #include <QList>
 #include <QString>
 #include <QMap>