diff --git a/src/lib/tools/aesinterface.h b/src/lib/tools/aesinterface.h
index 1ffd49438..fda5e4abd 100644
--- a/src/lib/tools/aesinterface.h
+++ b/src/lib/tools/aesinterface.h
@@ -25,6 +25,7 @@
 
 #include <openssl/evp.h>
 
+#include <QObject>
 #include <QHash>
 #include <QList>