diff --git a/src/plugins/coreaudio/coreaudiodeviceinfo.mm b/src/plugins/coreaudio/coreaudiodeviceinfo.mm
index ac41a310..2faeac8c 100644
--- a/src/plugins/coreaudio/coreaudiodeviceinfo.mm
+++ b/src/plugins/coreaudio/coreaudiodeviceinfo.mm
@@ -45,6 +45,7 @@
 # include "coreaudiosessionmanager.h"
 #endif
 
+#include <QtCore/QDataStream>
 #include <QtCore/QDebug>
 #include <QtCore/QSet>
 
diff --git a/src/plugins/coreaudio/coreaudioinput.h b/src/plugins/coreaudio/coreaudioinput.h
index 64691eb3..533b7fef 100644
--- a/src/plugins/coreaudio/coreaudioinput.h
+++ b/src/plugins/coreaudio/coreaudioinput.h
@@ -38,6 +38,7 @@
 #include <CoreAudio/CoreAudioTypes.h>
 #include <AudioToolbox/AudioToolbox.h>
 
+#include <QtCore/QIODevice>
 #include <QtCore/QWaitCondition>
 #include <QtCore/QMutex>
 #include <QtCore/QTimer>
diff --git a/src/plugins/coreaudio/coreaudioinput.mm b/src/plugins/coreaudio/coreaudioinput.mm
index a0b9e9d2..972f959f 100644
--- a/src/plugins/coreaudio/coreaudioinput.mm
+++ b/src/plugins/coreaudio/coreaudioinput.mm
@@ -52,6 +52,7 @@
 #endif
 
 #include <QtMultimedia/private/qaudiohelpers_p.h>
+#include <QtCore/QDataStream>
 #include <QtCore/QDebug>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/plugins/coreaudio/coreaudiooutput.h b/src/plugins/coreaudio/coreaudiooutput.h
index 84083ace..23b22937 100644
--- a/src/plugins/coreaudio/coreaudiooutput.h
+++ b/src/plugins/coreaudio/coreaudiooutput.h
@@ -41,6 +41,7 @@
 #include <AudioUnit/AudioUnit.h>
 #include <CoreAudio/CoreAudioTypes.h>
 
+#include <QtCore/QIODevice>
 #include <QtCore/QWaitCondition>
 #include <QtCore/QMutex>
 
diff --git a/src/plugins/coreaudio/coreaudiooutput.mm b/src/plugins/coreaudio/coreaudiooutput.mm
index 812d9dfe..7bb5c0e1 100644
--- a/src/plugins/coreaudio/coreaudiooutput.mm
+++ b/src/plugins/coreaudio/coreaudiooutput.mm
@@ -43,6 +43,7 @@
 #include "coreaudiodeviceinfo.h"
 #include "coreaudioutils.h"
 
+#include <QtCore/QDataStream>
 #include <QtCore/QTimer>
 #include <QtCore/QDebug>