diff --git a/src/@types/save-data.ts b/src/@types/save-data.ts
index ae359c20949..c737f5097ad 100644
--- a/src/@types/save-data.ts
+++ b/src/@types/save-data.ts
@@ -123,7 +123,7 @@ export interface Starter {
   pokerus: boolean;
   nickname?: string;
   teraType?: PokemonType;
-  ivs: number[];
+  ivs: Uint8Array;
 }
 
 export type RunHistoryData = Record<number, RunEntry>;