diff --git a/README.md b/README.md
index df55c29..2e409bb 100644
--- a/README.md
+++ b/README.md
@@ -557,7 +557,7 @@ To upload the latest provided hex file under [Release](https://github.com/pascal
 Use a tool like [AVR Burn-O-Mat](http://avr8-burn-o-mat.aaabbb.de/) to set the fuses of the Atmega328 to:
 - Low Fuse	     0xFF
 - High Fuse	    0xD2
-- Extended Fuse	0x05
+- Extended Fuse	0x05 (or 0xFD which is the same)
 
 This will make sure your ATMEGA328 is well configured and the global TX ID is not erased at each updates.