diff --git a/src/GAudioOutput.h b/src/GAudioOutput.h
index 2856ea1..7866729 100644
--- a/src/GAudioOutput.h
+++ b/src/GAudioOutput.h
@@ -41,8 +41,8 @@ This file is part of the PIXHAWK project
 #endif
 #ifdef Q_OS_LINUX
 //#include <flite/flite.h>
-#include <Phonon/MediaObject>
-#include <Phonon/AudioOutput>
+#include <phonon/MediaObject>
+#include <phonon/AudioOutput>
 #endif
 #ifdef Q_OS_WIN
 #include <Phonon/MediaObject>