diff --git a/src/beep.c b/src/beep.c
index 15e3a34..7cec3d2 100644
--- a/src/beep.c
+++ b/src/beep.c
@@ -2,7 +2,7 @@
 #include <stdlib.h>
 #include <stdint.h>
 #include <unistd.h> // for usleep()
-#include <portaudio.h>
+#include "portaudio.h"
 
 #include "beep.h"