diff --git a/Debug-with-serial.md b/Debug-with-serial.md
index 0bd457c..2672769 100644
--- a/Debug-with-serial.md
+++ b/Debug-with-serial.md
@@ -5,7 +5,7 @@ If you wanna set break point etc, use another debug method.
 1. Include the async msg header in your file
 ``` 
 
-#include "usb_serial_debug_bridge.hpp"
+#include "usb_serial_asyncmsg.hpp"
 
 ```