diff --git a/mandel.s b/mandel.s
index 8517685..9f594e8 100644
--- a/mandel.s
+++ b/mandel.s
@@ -397,11 +397,11 @@ viewport_oy:
 ;.align 256 ; warning - if not aligned this will cost an extra cycle sometimes
 bank_switch_table:
     .repeat 256, i
-        .byte ((i & $c0) >> 4) | $e1
+        .byte ((i & $c0) >> 4) | $e3
     .endrepeat
 
 .macro bank_switch bank
-    lda #((bank << 2) | $e1)
+    lda #((bank << 2) | $e3)
     sta PORTB
 .endmacro