diff --git a/test/mystery-encounter/encounters/part-timer-encounter.test.ts b/test/mystery-encounter/encounters/part-timer-encounter.test.ts
index 78369570fa9..05af5757b2a 100644
--- a/test/mystery-encounter/encounters/part-timer-encounter.test.ts
+++ b/test/mystery-encounter/encounters/part-timer-encounter.test.ts
@@ -168,7 +168,7 @@ describe("Part-Timer - Mystery Encounter", () => {
       // Override party levels to 50 so stats can be fully reflective
       scene.getPlayerParty().forEach(p => {
         p.level = 50;
-        p.ivs = [0, 0, 0, 0, 0, 0];
+        p.ivs = Uint8Array.of(0, 0, 0, 0, 0, 0);
         p.calculateStats();
       });
       await runMysteryEncounterToEnd(game, 2, { pokemonNo: 3 });