diff --git a/src/main/services/achievements/get-game-achievement-data.ts b/src/main/services/achievements/get-game-achievement-data.ts
index f5b7f6cb..3e3a4bac 100644
--- a/src/main/services/achievements/get-game-achievement-data.ts
+++ b/src/main/services/achievements/get-game-achievement-data.ts
@@ -1,5 +1,5 @@
 import { HydraApi } from "../hydra-api";
-import type { GameShop, SteamAchievement } from "@types";
+import type { GameAchievement, GameShop, SteamAchievement } from "@types";
 import { UserNotLoggedInError } from "@shared";
 import { logger } from "../logger";
 import { db, gameAchievementsSublevel, levelKeys } from "@main/level";
@@ -7,6 +7,18 @@ import { AxiosError } from "axios";
 
 const LOCAL_CACHE_EXPIRATION = 1000 * 60 * 30; // 30 minutes
 
+const getModifiedSinceHeader = (
+  cachedAchievements: GameAchievement | undefined
+): Date | undefined => {
+  if (!cachedAchievements) {
+    return undefined;
+  }
+
+  return cachedAchievements.updatedAt
+    ? new Date(cachedAchievements.updatedAt)
+    : undefined;
+};
+
 export const getGameAchievementData = async (
   objectId: string,
   shop: GameShop,
@@ -40,9 +52,7 @@ export const getGameAchievementData = async (
       language,
     },
     {
-      ifModifiedSince: cachedAchievements?.updatedAt
-        ? new Date(cachedAchievements?.updatedAt)
-        : undefined,
+      ifModifiedSince: getModifiedSinceHeader(cachedAchievements),
     }
   )
     .then(async (achievements) => {