diff --git a/mandel.s b/mandel.s
index d198989..7c5c652 100644
--- a/mandel.s
+++ b/mandel.s
@@ -1209,7 +1209,7 @@ zero_byte_loop:
 
     jsr imul8xe_init
 
-    ; ox = 0; oy = 0; zoom = 0
+    ; ox = 0; oy = 0
     ; count_frames = 0; count_pixels = 0
     lda #0
     sta ox