diff --git a/libsrc/common/vsprintf.s b/libsrc/common/vsprintf.s
index e9e153c98..317987807 100644
--- a/libsrc/common/vsprintf.s
+++ b/libsrc/common/vsprintf.s
@@ -152,14 +152,10 @@ _vsprintf:
 	tya
 	sta	(ptr1),y
 
-; Return the number of bytes written. The carry is clear here because of the
-; last addition which will never overflow for sane code.
+; Return the number of bytes written.
 
     	lda	outdesc		; ccount
     	ldx	outdesc+1
-    	adc	#1		; Account for terminator
-    	bcc	@L9
-    	inx
-@L9:	rts
+	rts