diff --git a/avr/MESSAGES b/avr/MESSAGES
index 5ab2ead..a34a1e7 100644
--- a/avr/MESSAGES
+++ b/avr/MESSAGES
@@ -284,7 +284,7 @@ Offset Length Meaning
      2      1 command code
      3      1 source address
 ---------------------------------------------------------
-     4      1 code (0 if okay, error code to abort)
+     4      1 reason (0 if okay, error code to abort)