diff --git a/source/data/map/level_3.json b/source/data/map/level_3.json
index dc05421..04ad595 100644
--- a/source/data/map/level_3.json
+++ b/source/data/map/level_3.json
@@ -1,5 +1,5 @@
 {
-    "background_type":0,
+    "background_type":1,
     "init_sun_value":50,
     "zombie_list":[
         {"time":20000, "map_y":0, "name":"Zombie"},
@@ -17,4 +17,4 @@
         {"time":96000, "map_y":1, "name":"BucketheadZombie"},
         {"time":97000, "map_y":1, "name":"FlagZombie"}
     ]
-}
\ No newline at end of file
+}