diff --git a/api/server/models.ts b/api/server/models.ts
index 07e36edf1..ef547772a 100644
--- a/api/server/models.ts
+++ b/api/server/models.ts
@@ -14,6 +14,7 @@ export interface Chat {
   title?: string;
   picture?: string;
   lastMessage?: Message;
+  memberIds?: string[];
 }
 
 export interface Message {