diff --git a/Sonoff-4CH.md b/Sonoff-4CH.md
index cbc615ae..34e6a49d 100644
--- a/Sonoff-4CH.md
+++ b/Sonoff-4CH.md
@@ -7,4 +7,4 @@ In the Arduino IDE select **Board** Generic ESP8285 Module as this contains the
 
 After first restart make sure to select either module Sonoff Touch or Sonoff 4CH at least before any OTA or Upload action.
 
-Starting with version 3.9.12 the OTA or Upload code will now check if one of the above modules is selected and patch the uploaded ESP8266 code with FlashChipMode DIO for the ESP8285 FlashChipMode DOUT before it is copied to it's final destination.
+Starting with version 3.9.12 the OTA or Upload code will now check if one of the above modules is selected and patch the uploaded default ESP8266 code with FlashChipMode DIO to the ESP8285 FlashChipMode DOUT before it is copied to it's final destination.