diff --git a/avr/modules/spi_sw/main.asm b/avr/modules/spi_sw/main.asm
index 72a2631..5470eda 100644
--- a/avr/modules/spi_sw/main.asm
+++ b/avr/modules/spi_sw/main.asm
@@ -86,7 +86,7 @@ SPISW_MasterStop:
 ;
 ; @param r16 byte to send
 ; @return r16 byte received
-; @clobbers r17, r18, r19, r23
+; @clobbers r17, r23
 
 SPISW_MasterExchangeByteMode0:
   push r15