diff --git a/include/battle.h b/include/battle.h
index 71a25eaa7e..a437f41d49 100644
--- a/include/battle.h
+++ b/include/battle.h
@@ -4,7 +4,7 @@
 // should they be included here or included individually by every file?
 #include "battle_util.h"
 #include "battle_script_commands.h"
-#include "battle_2.h"
+#include "battle_main.h"
 #include "battle_ai_switch_items.h"
 #include "battle_gfx_sfx_util.h"
 #include "battle_util2.h"
diff --git a/include/battle_2.h b/include/battle_main.h
similarity index 95%
rename from include/battle_2.h
rename to include/battle_main.h
index ee61efd9b7..54b5e7da62 100644
--- a/include/battle_2.h
+++ b/include/battle_main.h
@@ -1,5 +1,5 @@
-#ifndef GUARD_BATTLE_2_H
-#define GUARD_BATTLE_2_H
+#ifndef GUARD_BATTLE_MAIN_H
+#define GUARD_BATTLE_MAIN_H
 
 void CB2_InitBattle(void);
 void BattleMainCB2(void);
@@ -52,4 +52,4 @@ extern const u8 gStatusConditionString_LoveJpn[8];
 
 extern const u8 * const gStatusConditionStringsTable[7][2];
 
-#endif // GUARD_BATTLE_2_H
+#endif // GUARD_BATTLE_MAIN_H
diff --git a/ld_script.txt b/ld_script.txt
index ae8dd057d3..d85b3a59d3 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -59,7 +59,7 @@ SECTIONS {
         src/decompress.o(.text);
         asm/rom_8034C54.o(.text);
         src/battle_bg.o(.text);
-        src/battle_2.o(.text);
+        src/battle_main.o(.text);
         src/battle_util.o(.text);
         src/battle_script_commands.o(.text);
         src/battle_util2.o(.text);
@@ -379,7 +379,7 @@ SECTIONS {
         data/main_menu.o(.rodata);
         data/battle_1.o(.rodata);
         data/data2b.o(.rodata);
-        src/battle_2.o(.rodata);
+        src/battle_main.o(.rodata);
         src/battle_util.o(.rodata);
         src/battle_script_commands.o(.rodata);
         src/battle_controller_player.o(.rodata);
diff --git a/src/battle_2.c b/src/battle_main.c
similarity index 100%
rename from src/battle_2.c
rename to src/battle_main.c