diff --git a/src/GRAPHTST.ASM b/src/GRAPHTST.ASM
index 19637b7..e686203 100644
--- a/src/GRAPHTST.ASM
+++ b/src/GRAPHTST.ASM
@@ -107,7 +107,7 @@ SETCUR: LXI H, CurPos    ; load the start address into HL
 		LXI H, CurPos    ; reset HL
 		CALL PRINTF      ; print the ESC-sequence
 		RET
- Start of the main code block
+; Start of the main code block
 START:  LXI H, 0         ; blank out HL
 		DAD SP           ; HL = SP
 		SHLD Stack       ; save the original stack