diff --git a/src/definition/rooms/IRoom.ts b/src/definition/rooms/IRoom.ts
index c62f5d7f0..a26f991d2 100644
--- a/src/definition/rooms/IRoom.ts
+++ b/src/definition/rooms/IRoom.ts
@@ -20,7 +20,12 @@ export interface IRoom {
     updatedAt?: Date;
     lastModifiedAt?: Date;
     description?: string;
+    /** @deprecated */
     customFields?: { [key: string]: any };
+    custom?: ICustomFields;
     parentRoom?: IRoom;
     livechatData?: { [key: string]: any };
 }
+
+// tslint:disable-next-line
+interface ICustomFields {}