diff --git a/frappe/public/js/frappe/form/footer/new_timeline.js b/frappe/public/js/frappe/form/footer/new_timeline.js
index b7eb5426f1..fa12489f2f 100644
--- a/frappe/public/js/frappe/form/footer/new_timeline.js
+++ b/frappe/public/js/frappe/form/footer/new_timeline.js
@@ -142,6 +142,8 @@ frappe.ui.form.NewTimeline = class {
 	}
 
 	get_communication_timeline_content(doc) {
+		doc.owner = doc.sender;
+		doc.user_full_name = doc.sender_full_name;
 		let communication_content =  $(frappe.render_template('timeline_message_box', { doc }));
 		this.setup_reply(communication_content, doc);
 		return communication_content;
diff --git a/frappe/public/js/frappe/form/templates/timeline_message_box.html b/frappe/public/js/frappe/form/templates/timeline_message_box.html
index 8fce6545e9..e2033eef70 100644
--- a/frappe/public/js/frappe/form/templates/timeline_message_box.html
+++ b/frappe/public/js/frappe/form/templates/timeline_message_box.html
@@ -5,7 +5,7 @@
 				{{ frappe.avatar(doc.owner, "avatar-medium") }}
 			</span>
 			<span class="margin-left">
-				{{ frappe.user.full_name(doc.owner) }}
+				{{ doc.user_full_name || frappe.user.full_name(doc.owner) }}
 				<div class="text-muted">
 					{{ comment_when(doc.creation) }}
 				</div>