diff --git a/web/core/components/issues/issue-detail/issue-activity/comments/comment-block.tsx b/web/core/components/issues/issue-detail/issue-activity/comments/comment-block.tsx
index 8b9a3eff0..9a35ef1da 100644
--- a/web/core/components/issues/issue-detail/issue-activity/comments/comment-block.tsx
+++ b/web/core/components/issues/issue-detail/issue-activity/comments/comment-block.tsx
@@ -28,11 +28,13 @@ export const IssueCommentBlock: FC<TIssueCommentBlock> = observer((props) => {
     <div className={`relative flex gap-3 ${ends === "top" ? `pb-2` : ends === "bottom" ? `pt-2` : `py-2`}`}>
       <div className="absolute left-[13px] top-0 bottom-0 w-0.5 bg-custom-background-80" aria-hidden />
       <div className="flex-shrink-0 relative w-7 h-7 rounded-full flex justify-center items-center z-[3] bg-gray-500 text-white border border-white uppercase font-medium">
-        {comment.actor_detail.avatar_url && comment.actor_detail.avatar_url !== "" ? (
+        {comment.actor_detail?.avatar_url && comment.actor_detail?.avatar_url !== "" ? (
           <img
-            src={getFileURL(comment.actor_detail.avatar_url)}
+            src={getFileURL(comment.actor_detail?.avatar_url)}
             alt={
-              comment.actor_detail.is_bot ? comment.actor_detail.first_name + " Bot" : comment.actor_detail.display_name
+              comment.actor_detail?.is_bot
+                ? comment.actor_detail?.first_name + " Bot"
+                : comment.actor_detail?.display_name
             }
             height={30}
             width={30}
@@ -40,9 +42,9 @@ export const IssueCommentBlock: FC<TIssueCommentBlock> = observer((props) => {
           />
         ) : (
           <>
-            {comment.actor_detail.is_bot
-              ? comment.actor_detail.first_name.charAt(0)
-              : comment.actor_detail.display_name.charAt(0)}
+            {comment.actor_detail?.is_bot
+              ? comment.actor_detail?.first_name.charAt(0)
+              : comment.actor_detail?.display_name.charAt(0)}
           </>
         )}
         <div className="absolute top-2 left-4 w-5 h-5 rounded-full overflow-hidden flex justify-center items-center bg-custom-background-80">
@@ -53,9 +55,9 @@ export const IssueCommentBlock: FC<TIssueCommentBlock> = observer((props) => {
         <div className="w-full truncate space-y-1">
           <div>
             <div className="text-xs capitalize">
-              {comment.actor_detail.is_bot
-                ? comment.actor_detail.first_name + " Bot"
-                : comment.actor_detail.display_name}
+              {comment.actor_detail?.is_bot
+                ? comment.actor_detail?.first_name + " Bot"
+                : comment.actor_detail?.display_name}
             </div>
             <div className="text-xs text-custom-text-200">commented {calculateTimeAgo(comment.created_at)}</div>
           </div>