diff --git a/zsnes/src/cpu/regs.inc b/zsnes/src/cpu/regs.inc
index d8eba666..6373eacf 100644
--- a/zsnes/src/cpu/regs.inc
+++ b/zsnes/src/cpu/regs.inc
@@ -412,7 +412,7 @@ NEWSYM iohvlatch, db 0
 NEWSYM ppustatus, db 0
 
 
-NEWSYM tempdat, times 478 db 0     ; expandable area
+NEWSYM tempdat, times 477 db 0     ; expandable area
 
 num2writeppureg equ $-sndrot
 ; pharos equ hack *sigh*