diff --git a/src/util/interfaces/Activity.ts b/src/util/interfaces/Activity.ts
index ff12500cf..f8b3ab53f 100644
--- a/src/util/interfaces/Activity.ts
+++ b/src/util/interfaces/Activity.ts
@@ -23,12 +23,14 @@ export interface Activity {
     created_at?: number; // unix timestamp of when the activity was added to the user's session
     timestamps?: {
         // unix timestamps for start and/or end of the game
-        start: number;
-        end: number;
+        start?: number;
+        end?: number;
     };
     application_id?: string; // application id for the game
     details?: string;
+    details_url?: string;
     state?: string;
+    status_display_type?: ActivityStatusDisplayType | null;
     emoji?: {
         name: string;
         id?: string;
@@ -77,3 +79,9 @@ export enum ActivityType {
     CUSTOM = 4,
     COMPETING = 5,
 }
+
+export enum ActivityStatusDisplayType {
+    NAME = 0,
+    STATE = 1,
+    DETAILS = 2,
+}