diff --git a/data/maps/NewMauville_Inside/map.json b/data/maps/NewMauville_Inside/map.json
index eea1190685..ae1654d8b5 100644
--- a/data/maps/NewMauville_Inside/map.json
+++ b/data/maps/NewMauville_Inside/map.json
@@ -24,7 +24,7 @@
       "movement_range_y": 0,
       "trainer_type": "TRAINER_TYPE_NONE",
       "trainer_sight_or_berry_tree_id": "0",
-      "script": "NewMauville_Inside_EventScript_ItemUltraRope",
+      "script": "NewMauville_Inside_EventScript_ItemUltraBall",
       "flag": "FLAG_ITEM_NEW_MAUVILLE_ULTRA_BALL"
     },
     {
diff --git a/data/scripts/item_ball_scripts.inc b/data/scripts/item_ball_scripts.inc
index 2876e9e8cb..82633f77c0 100644
--- a/data/scripts/item_ball_scripts.inc
+++ b/data/scripts/item_ball_scripts.inc
@@ -398,7 +398,7 @@ MeteorFalls_B1F_2R_EventScript_ItemTM02:: @ 82911DF
 	finditem ITEM_TM02
 	end
 
-NewMauville_Inside_EventScript_ItemUltraRope:: @ 82911EC
+NewMauville_Inside_EventScript_ItemUltraBall:: @ 82911EC
 	finditem ITEM_ULTRA_BALL
 	end