diff --git a/data/tilesets/nihon01_collision.asm b/data/tilesets/nihon01_collision.asm
index a67f8fe..692b0f8 100644
--- a/data/tilesets/nihon01_collision.asm
+++ b/data/tilesets/nihon01_collision.asm
@@ -34,7 +34,7 @@
 	tilecoll WALL, WALL, WALL, WALL ; 21
 	tilecoll WALL, WALL, WALL, WALL ; 22
 	tilecoll WALL, WALL, WALL, WALL ; 23
-	tilecoll WALL, WALL, FLOOR, FLOOR ; 24
+	tilecoll FLOOR, WALL, FLOOR, WALL ; 24
 	tilecoll WALL, WALL, WALL, WALL ; 25
 	tilecoll WALL, WALL, WALL, WALL ; 26
 	tilecoll WALL, WALL, DOOR, WALL ; 27