diff --git a/data/scripts/tv.inc b/data/scripts/tv.inc
index 9f197515d..4a276ffc0 100644
--- a/data/scripts/tv.inc
+++ b/data/scripts/tv.inc
@@ -42,9 +42,9 @@ EventScript_27EE9A:: @ 827EE9A
 
 EventScript_27EEA4:: @ 827EEA4
 	msgbox LittlerootTown_BrendansHouse_1F_Text_1F826F, MSGBOX_DEFAULT
-    @ This is a junk call. Its input var (VAR_0x8004) hasn't been set, and
-    @ It's called again when Mom actually asks for the color, overwriting
-    @ whatever it does here.
+	@ This is a junk call. Its input var (VAR_0x8004) hasn't been set, and
+	@ It's called again when Mom actually asks for the color, overwriting
+	@ whatever it does here.
 	special InitRoamer
 	clearflag FLAG_SYS_TV_LATIAS_LATIOS
 	setflag FLAG_LATIOS_OR_LATIAS_ROAMING
diff --git a/include/overworld.h b/include/overworld.h
index 7ca442957..3a760ca79 100644
--- a/include/overworld.h
+++ b/include/overworld.h
@@ -98,7 +98,7 @@ u8 GetCurrentMapType(void);
 u8 GetLastUsedWarpMapType(void);
 bool8 IsMapTypeOutdoors(u8 mapType);
 bool8 Overworld_MapTypeAllowsTeleportAndFly(u8 mapType);
-bool8 Overworld_MapTypeIsIndoors(u8 mapType);
+bool8 IsMapTypeIndoors(u8 mapType);
 u8 GetSavedWarpRegionMapSectionId(void);
 u8 GetCurrentRegionMapSectionId(void);
 u8 GetCurrentMapBattleScene(void);
diff --git a/src/overworld.c b/src/overworld.c
index 837855877..731449608 100644
--- a/src/overworld.c
+++ b/src/overworld.c
@@ -838,7 +838,7 @@ static void mli0_load_map(u32 a1)
     }
 
     isOutdoors = IsMapTypeOutdoors(gMapHeader.mapType);
-    isIndoors = Overworld_MapTypeIsIndoors(gMapHeader.mapType);
+    isIndoors = IsMapTypeIndoors(gMapHeader.mapType);
 
     sub_80EB218();
     TrySetMapSaveWarpStatus();
@@ -1199,7 +1199,7 @@ void Overworld_ChangeMusicTo(u16 newMusic)
 u8 GetMapMusicFadeoutSpeed(void)
 {
     const struct MapHeader *mapHeader = GetDestinationWarpMapHeader();
-    if (Overworld_MapTypeIsIndoors(mapHeader->mapType) == TRUE)
+    if (IsMapTypeIndoors(mapHeader->mapType) == TRUE)
         return 2;
     else
         return 4;
@@ -1353,7 +1353,7 @@ bool8 Overworld_MapTypeAllowsTeleportAndFly(u8 mapType)
         return FALSE;
 }
 
-bool8 Overworld_MapTypeIsIndoors(u8 mapType)
+bool8 IsMapTypeIndoors(u8 mapType)
 {
     if (mapType == MAP_TYPE_INDOOR
      || mapType == MAP_TYPE_SECRET_BASE)