diff --git a/src/game/save_file.h b/src/game/save_file.h
index 5cd6cd13..85ce087a 100644
--- a/src/game/save_file.h
+++ b/src/game/save_file.h
@@ -58,7 +58,7 @@ struct MainMenuSaveData
     // the older the high score is. This is used for tie-breaking when displaying
     // on the high score screen.
     u32 coinScoreAges[NUM_SAVE_FILES];
-    u16 soundMode;
+    u8 soundMode: 2;
 
 #ifdef VERSION_EU
     u16 language;