diff --git a/erpnext/utilities/doctype/rename_tool/rename_tool.js b/erpnext/utilities/doctype/rename_tool/rename_tool.js
index 5553e44..b8203f4 100644
--- a/erpnext/utilities/doctype/rename_tool/rename_tool.js
+++ b/erpnext/utilities/doctype/rename_tool/rename_tool.js
@@ -30,7 +30,16 @@
 					select_doctype: frm.doc.select_doctype
 				},
 				callback: function(r) {
-					frm.get_field("rename_log").$wrapper.html(r.message.join("<br>"));
+					let html = r.message.join("<br>");
+
+					if (r.exc) {
+						r.exc = frappe.utils.parse_json(r.exc);
+						if (Array.isArray(r.exc)) {
+							html += "<br>" + r.exc.join("<br>");
+						}
+					}
+
+					frm.get_field("rename_log").$wrapper.html(html);
 				}
 			});
 		});