diff --git a/src/app/comment.ts b/src/app/comment.ts
index c199c32a02d9da11e25d499a148f796275484312..ae8fddba929c3da7618dff5ae8fa6fa8fc093ce7 100644
--- a/src/app/comment.ts
+++ b/src/app/comment.ts
@@ -1,6 +1,7 @@
 export class Comment {
   id: string;
   roomId: string;
+  revision: string
   subject: string;
   body: string;
   read: boolean;