diff --git a/addons/isl/src/types.ts b/addons/isl/src/types.ts
index 60158dc8d8307..041e01308fa20 100644
--- a/addons/isl/src/types.ts
+++ b/addons/isl/src/types.ts
@@ -86,7 +86,7 @@ export type DiffCommentReaction = {
 };
 
 export type DiffComment = {
-  id: string;
+  id?: string;
   author: string;
   authorName?: string;
   authorAvatarUri?: string;