diff --git a/Debug-Serial.md b/Debug-Serial.md
index 43afd88..9372314 100644
--- a/Debug-Serial.md
+++ b/Debug-Serial.md
@@ -50,6 +50,7 @@ If enabled with parameter DEBUG_SERIAL_PROTOCOL in [config.h](https://github.com
 |SAVE|SAVE|Saves all parameters that can be saved to EEPROM|
 |WATCH|WATCH PPPP|Enables/disables output for parameter/variable. It will display 15 values at most|
 
+An end of line(\n) character is expected at the end of each command.
 
 ### Parameters/Variables
 All commands can be used for parameters, but variables cannot be Set,Initialized or Saved.<br>