diff --git a/papermario/include/functions.h b/papermario/include/functions.h
index d495f54906..47b91a0b6b 100644
--- a/papermario/include/functions.h
+++ b/papermario/include/functions.h
@@ -19,5 +19,5 @@ s32 func_800554E8(s32, s32);
 s32 func_800555E4(s32);
 
 s32 play_sound_at_position(s32 soundID, s32 value2, f32 posX, f32 posY, f32 posZ);
-
+s32 set_music_track(s32 musicPlayer, s32 songID, s32 variation, s32 unk, s32 volume);
 #endif
diff --git a/papermario/src/code_e0b30_len_b80.c b/papermario/src/code_e0b30_len_b80.c
index 6e2fd7dd93..5178ece24d 100644
--- a/papermario/src/code_e0b30_len_b80.c
+++ b/papermario/src/code_e0b30_len_b80.c
@@ -10,7 +10,7 @@ INCLUDE_ASM(code_e0b30_len_b80, func_8014A548);
 
 INCLUDE_ASM(code_e0b30_len_b80, _set_music_track);
 
-INCLUDE_ASM(code_e0b30_len_b80, set_music_track);
+s32 INCLUDE_ASM(code_e0b30_len_b80, set_music_track, s32 musicPlayer, s32 songID, s32 variation, s32 unk, s32 volume);
 
 INCLUDE_ASM(code_e0b30_len_b80, func_8014A964);
 
diff --git a/papermario/src/code_fa4c0_len_3bf0.c b/papermario/src/code_fa4c0_len_3bf0.c
index 44b889a82c..973aa33c98 100644
--- a/papermario/src/code_fa4c0_len_3bf0.c
+++ b/papermario/src/code_fa4c0_len_3bf0.c
@@ -15,9 +15,9 @@ s32 SetMusicTrack(script_context* script, s32 initialCall) {
     s32 musicPlayer = get_variable(script, *ptrReadPos++);
     s32 songID = get_variable(script, *ptrReadPos++);
     s32 variation = get_variable(script, *ptrReadPos++);
-    s32 volume = get_variable(script, *ptrReadPos++);
+    s16 volume = get_variable(script, *ptrReadPos++);
 
-    return (set_music_track(musicPlayer, songID, variation, 0x1F4, (volume << 0x10) >> 0x10) != 0) * 2;
+    return (set_music_track(musicPlayer, songID, variation, 0x1F4, volume) != 0) * 2;
 }
 
 INCLUDE_ASM(code_fa4c0_len_3bf0, FadeInMusic);