diff --git a/web/ce/store/issue/issue-details/activity.store.ts b/web/ce/store/issue/issue-details/activity.store.ts
index 567780f5e9c..605c4ec2fa7 100644
--- a/web/ce/store/issue/issue-details/activity.store.ts
+++ b/web/ce/store/issue/issue-details/activity.store.ts
@@ -104,7 +104,7 @@ export class IssueActivityStore implements IIssueActivityStore {
       });
     });
     
-    activityComments = orderBy(activityComments, (e)=>new Date(e.created_at||''), this.sortOrder);
+    activityComments = orderBy(activityComments, (e)=>new Date(e.created_at || 0), this.sortOrder);
 
     return activityComments;
   });