--- a/src/AudioIOBase.cpp
+++ b/src/AudioIOBase.cpp
@@ -21,6 +21,7 @@
#include "prefs/RecordingPrefs.h"
#include "widgets/MeterPanelBase.h"
+#include "portaudio.h"
#if USE_PORTMIXER
#include "portmixer.h"
#endif