diff --git a/Code/uLisp/README.md b/Code/uLisp/README.md
index 638cba4..702f121 100644
--- a/Code/uLisp/README.md
+++ b/Code/uLisp/README.md
@@ -62,6 +62,7 @@ Here is the screenshot for reference:
 
 ![ulisp arduino](https://github.com/clockworkpi/PicoCalc/blob/master/wiki/arduino_uLisp_compile.png)
 
+It should be noted that uLisp's default serial port speed is **9600**