diff --git a/src/QGCApplication.h b/src/QGCApplication.h
index 440bbc51879806915d523d739e3157e6ad1fc7eb..bf851fcaa792e22d4c412500e23fa6f63e3640bd 100644
--- a/src/QGCApplication.h
+++ b/src/QGCApplication.h
@@ -16,7 +16,8 @@
 #include <QSet>
 #include <QMetaMethod>
 #include <QMetaObject>
-#include <private/qcoreapplication_p.h>
+
+// These private headers are require to implement the signal compress support below
 #include <private/qthread_p.h>
 #include <private/qobject_p.h>