diff --git a/libs/portaudio/src/hostapi/coreaudio/pa_mac_core_internal.h b/libs/portaudio/src/hostapi/coreaudio/pa_mac_core_internal.h
index 291304c7e3..d2b5c105a1 100644
--- a/libs/portaudio/src/hostapi/coreaudio/pa_mac_core_internal.h
+++ b/libs/portaudio/src/hostapi/coreaudio/pa_mac_core_internal.h
@@ -63,6 +63,7 @@
 
 #include <AudioUnit/AudioUnit.h>
 #include <AudioToolbox/AudioToolbox.h>
+#include <CoreServices/CoreServices.h>
 
 
 #include "portaudio.h"