diff --git a/mandel.s b/mandel.s
index 8c6130b..3ff91d1 100644
--- a/mandel.s
+++ b/mandel.s
@@ -435,11 +435,11 @@ fill_masks:
 ;.align 256 ; warning - if not aligned this will cost an extra cycle sometimes
 bank_switch_table:
     .repeat 256, i
-        .byte ((i & $c0) >> 4) | $d1
+        .byte ((i & $c0) >> 4) | $e1
     .endrepeat
 
 .macro bank_switch bank
-    lda #((bank << 2) | $d1)
+    lda #((bank << 2) | $e1)
     sta PORTB
 .endmacro