diff --git a/src/multimedia/audio/qsoundeffect_qaudio_p.cpp b/src/multimedia/audio/qsoundeffect_qaudio_p.cpp
index 2b4359cc..56166ea3 100644
--- a/src/multimedia/audio/qsoundeffect_qaudio_p.cpp
+++ b/src/multimedia/audio/qsoundeffect_qaudio_p.cpp
@@ -53,9 +53,6 @@
 #include "qsoundeffect_qaudio_p.h"
 
 #include <QtCore/qcoreapplication.h>
-#include <QtCore/qthread.h>
-#include <QtCore/qmutex.h>
-#include <QtCore/qwaitcondition.h>
 #include <QtCore/qiodevice.h>
 
 //#include <QDebug>