diff --git a/src/passport.a b/src/passport.a
index 59b7fc1..81f7569 100755
--- a/src/passport.a
+++ b/src/passport.a
@@ -94,7 +94,7 @@ flag     =     $FF        ; byte
 }
 
 ; Application constants (not zero addresses)
-RELBASE  =     $6300      ; address to move Passport code
+RELBASE  =     $6400      ; address to move Passport code
                           ; so that it's out of the way
 LOWPOINT =     $4300      ; lowest available address for code
 BASEPAGE =     $10        ; Special Delivery tracer assumes
@@ -682,7 +682,6 @@ _applyToT00
          !source "patchers/rol1e.a"
          !source "patchers/jmpb4bb.a"
          !source "patchers/jmpb4bbhi.a"
-         !source "patchers/jmpb400.a"
          !source "patchers/thunder.a"
          !source "patchers/jsrbb03.a"
          !source "patchers/davidbb03.a"
diff --git a/src/patchers/jmpb400.a b/src/patchers/jmpb400.a
deleted file mode 100755
index aeeb72b..0000000
--- a/src/patchers/jmpb400.a
+++ /dev/null
@@ -1,28 +0,0 @@
-;-------------------------------
-; #JMPB400
-; boot1 jumps to nibble check at
-; $B400 instead of $9D84
-; e.g. Decimal Discovery
-;-------------------------------
-!zone {
-_jmpb400
-         lda   gIsBoot0   ; if DOS 3.3 boot0 loader
-         bne   .exit
-         lda   gIsBoot1   ; and DOS 3.3 boot1 loader
-         bne   .exit
-         lda   #$01
-         sta   gDisplayBytes
-         ldx   #$47
-         ldy   #$03
-         jsr   compare    ; and T00,S01,$47 ==
-         !byte $4C,$00,$B4
-         bcs   .exit
-         lda   #s_jmpb400
-         jsr   PrintByID
-         lda   #$01
-         ldx   #$48
-         ldy   #$02
-         jsr   modify     ; then set T00,S01,$48 =
-         !byte $84,$9D
-.exit
-}