diff --git a/server/controllers/game.ts b/server/controllers/game.ts
index a57463e6c..679941c5e 100644
--- a/server/controllers/game.ts
+++ b/server/controllers/game.ts
@@ -401,7 +401,7 @@ gameController.get({ path: '/standardGame/:id', userType: UserType.TEACHER }, as
   }
   const id = parseInt(req.params.id, 10) || 0;
   const activity = await AppDataSource.getRepository(Activity).findOne({ where: { id } });
-  const activityId = activity.id;
+  const activityId = activity?.id;
   if (!activity || (req.user.type === UserType.TEACHER && req.user.villageId !== activity.villageId)) {
     next();
     return;
diff --git a/types/activity.type.ts b/types/activity.type.ts
index 94985cc76..76b3a8a93 100644
--- a/types/activity.type.ts
+++ b/types/activity.type.ts
@@ -3,6 +3,7 @@ export interface ActivityContent {
   id: number; // needed to sort content.
   type: ActivityContentType;
   value: string;
+  game?: unknown;
 }
 
 export type AnyData = Record<string, unknown>;