diff --git a/hairtunes.c b/hairtunes.c
index 03342f0d4..70cd6e31e 100644
--- a/hairtunes.c
+++ b/hairtunes.c
@@ -702,6 +702,8 @@ void *audio_thread_func(void *arg) {
 		}
 #endif
     }
+	
+	return 0;
 }
 
 #define NUM_CHANNELS 2