diff --git a/kernel/parse.asm b/kernel/parse.asm
index fda3a6e..8f7397b 100644
--- a/kernel/parse.asm
+++ b/kernel/parse.asm
@@ -16,12 +16,11 @@ parseHex:
 	sub 	0xf6	; maps to 0-9 and carries if not a digit
 	ret	nc
 
-.alpha:
 	and 	0xdf		; converts lowercase to uppercase
-	add	0xe9		; map 0x11-x017 onto 0xFA - 0xFF
+	add	a, 0xe9		; map 0x11-x017 onto 0xFA - 0xFF
 	sub 	0xfa		; map onto 0-6
 	ret 	c
-	; We have alpha.
+	; we have an A-F digit
 	add	a, 10		; C is clear, map back to 0xA-0xF
 	ret