diff --git a/src/beep.h b/src/beep.h
index 895a11c..20337f2 100644
--- a/src/beep.h
+++ b/src/beep.h
@@ -1,6 +1,6 @@
 #include <stdio.h>
 #include <math.h>
-#include "portaudio.h"
+#include <portaudio.h>
 
 #define NUM_SECONDS   (5)
 #define SAMPLE_RATE   (48000)