diff --git a/erpnext/hr/doctype/employee_onboarding/employee_onboarding.py b/erpnext/hr/doctype/employee_onboarding/employee_onboarding.py
index 3390e8f..fab0846 100644
--- a/erpnext/hr/doctype/employee_onboarding/employee_onboarding.py
+++ b/erpnext/hr/doctype/employee_onboarding/employee_onboarding.py
@@ -10,7 +10,7 @@
 
 
 class EmployeeOnboarding(EmployeeBoardingController):
-	def validate():
+	def validate(self):
 		super(EmployeeOnboarding, self).validate()
 
 	def validate_employee_creation(self):