diff --git a/frappe/model/naming.py b/frappe/model/naming.py
index 93be2204b4..29831451b0 100644
--- a/frappe/model/naming.py
+++ b/frappe/model/naming.py
@@ -59,8 +59,8 @@ class NamingSeries:
 		if not NAMING_SERIES_PATTERN.match(self.series):
 			frappe.throw(
 				_(
-					'Special Characters except "-", "#", ".", "/", "{" and "}" not allowed in naming series',
-				),
+					"Special Characters except '-', '#', '.', '/', '{{' and '}}' not allowed in naming series {0}"
+				).format(frappe.bold(self.series)),
 				exc=InvalidNamingSeriesError,
 			)