diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 0c6a978..dfc926d 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -316,3 +316,4 @@
 erpnext.patches.v7_0.update_missing_employee_in_timesheet
 erpnext.patches.v7_0.update_status_for_timesheet
 erpnext.patches.v7_0.set_party_name_in_payment_entry
+execute:frappe.db.sql("update `tabTimesheet` ts, `tabEmployee` emp set ts.employee_name = emp.employee_name where emp.name = ts.employee and ts.employee_name is null and ts.employee is not null")
diff --git a/erpnext/projects/doctype/timesheet/timesheet.py b/erpnext/projects/doctype/timesheet/timesheet.py
index 0379f90..0c49353 100644
--- a/erpnext/projects/doctype/timesheet/timesheet.py
+++ b/erpnext/projects/doctype/timesheet/timesheet.py
@@ -20,12 +20,17 @@
 
 class Timesheet(Document):
 	def validate(self):
+		self.set_employee_name()
 		self.set_status()
 		self.validate_dates()
 		self.validate_time_logs()
 		self.update_cost()
 		self.calculate_total_amounts()
 
+	def set_employee_name(self):
+		if self.employee and not self.employee_name:
+			self.employee_name = frappe.db.get_value('Employee', self.employee, 'employee_name')
+
 	def calculate_total_amounts(self):
 		self.total_hours = 0.0
 		self.total_billing_amount = 0.0