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-rw-r--r--home/map.asm2
1 files changed, 1 insertions, 1 deletions
diff --git a/home/map.asm b/home/map.asm
index 287bfcf49..eb061e713 100644
--- a/home/map.asm
+++ b/home/map.asm
@@ -1371,7 +1371,7 @@ UpdateBGMapColumn:: ; 27f8
inc d
; cap d at HIGH(vBGMap0)
ld a, d
- and $3
+ and %11
or HIGH(vBGMap0)
ld d, a