--- src/wavegen.cpp
+++ src/wavegen.cpp
@@ -40,7 +40,7 @@
 #endif
 
 #ifdef USE_PORTAUDIO
-#include "portaudio.h"
+#include <portaudio.h>
 #undef USE_PORTAUDIO
 // determine portaudio version by looking for a #define which is not in V18
 #ifdef paNeverDropInput