diff --git a/mandel.s b/mandel.s
index 3e60083..3579b0f 100644
--- a/mandel.s
+++ b/mandel.s
@@ -1226,8 +1226,8 @@ zero_byte_loop:
     jsr imul8xe_init
 
     ; initialize viewport
-    ;ldx #0 ; overview
-    ldx #1 ; closeup
+    ldx #0 ; overview
+    ;ldx #1 ; closeup
     lda viewport_zoom,x
     sta zoom