diff --git a/audio.asm b/audio.asm
index 7b8ceab72..f6646476f 100644
--- a/audio.asm
+++ b/audio.asm
@@ -411,7 +411,7 @@ INCLUDE "audio/music/pokecenter.asm"
 SECTION "Music 2", ROMX
 
 INCLUDE "audio/sfx/pokeflute_ch5_ch6.asm"
-INCLUDE "audio/sfx/unused2_2.asm"
+INCLUDE "audio/sfx/unreferenced_fanfare.asm"
 INCLUDE "audio/music/gymleaderbattle.asm"
 INCLUDE "audio/music/trainerbattle.asm"
 INCLUDE "audio/music/wildbattle.asm"
diff --git a/audio/sfx/unused2_2.asm b/audio/sfx/unreferenced_fanfare.asm
similarity index 91%
rename from audio/sfx/unused2_2.asm
rename to audio/sfx/unreferenced_fanfare.asm
index aa93f91c3..ffd1ad3b4 100644
--- a/audio/sfx/unused2_2.asm
+++ b/audio/sfx/unreferenced_fanfare.asm
@@ -1,3 +1,4 @@
+; This corresponds to SFX_KEY_ITEM in pokegold and pokecrystal.
 SFX_Unused2_Ch5:
 	execute_music
 	tempo 256