diff --git a/erpnext/setup/doctype/holiday_list/holiday_list.py b/erpnext/setup/doctype/holiday_list/holiday_list.py
index 526bc2b..df5b407 100644
--- a/erpnext/setup/doctype/holiday_list/holiday_list.py
+++ b/erpnext/setup/doctype/holiday_list/holiday_list.py
@@ -19,6 +19,7 @@
 	def validate(self):
 		self.validate_days()
 		self.total_holidays = len(self.holidays)
+		self.validate_dupliacte_date()
 
 	@frappe.whitelist()
 	def get_weekly_off_dates(self):
@@ -124,6 +125,14 @@
 	def clear_table(self):
 		self.set("holidays", [])
 
+	def validate_dupliacte_date(self):
+		unique_dates = []
+		for row in self.holidays:
+			if row.holiday_date in unique_dates:
+				frappe.throw(_("Holiday Date {0} added multiple times").format(frappe.bold(row.holiday_date)))
+
+			unique_dates.append(row.holiday_date)
+
 
 @frappe.whitelist()
 def get_events(start, end, filters=None):