diff --git a/main b/main
index 6b71bae..fcb6b97 100755
Binary files a/main and b/main differ
diff --git a/main.c b/main.c
index 5087367..ee84e1b 100644
--- a/main.c
+++ b/main.c
@@ -190,6 +190,9 @@ void teardown(void) {
     FreeSignal(waitForSoundSignalNumber);
   }
   if (TimerIO) {
+    // Wait for our port to be done communicating
+    WaitPort(TimerIO->tr_node.io_Message.mn_ReplyPort);
+
     DeleteExtIO((struct IORequest *)TimerIO);
   }
   if (timerPort) {