diff --git a/avr/modules/comproto/msg_value.asm b/avr/modules/comproto/msg_value.asm
index 10ceafb..477ddd1 100644
--- a/avr/modules/comproto/msg_value.asm
+++ b/avr/modules/comproto/msg_value.asm
@@ -137,7 +137,7 @@ cproInvertValueMsg:
   adiw xh:xl, 3          ; src address
   ld r16, X
   lds r17, com2Address
-  st X, r16              ; set our src address
+  st X, r17              ; set our src address
   sbiw xh:xl, 3
   st X, r16              ; set old src address as destination address