diff --git a/erpnext/hr/doctype/leave_allocation/test_leave_allocation.py b/erpnext/hr/doctype/leave_allocation/test_leave_allocation.py
index 26f077a6499..0b71036c860 100644
--- a/erpnext/hr/doctype/leave_allocation/test_leave_allocation.py
+++ b/erpnext/hr/doctype/leave_allocation/test_leave_allocation.py
@@ -6,6 +6,10 @@ from erpnext.hr.doctype.leave_type.test_leave_type import create_leave_type
 from erpnext.hr.doctype.leave_ledger_entry.leave_ledger_entry import process_expired_allocation, expire_allocation
 
 class TestLeaveAllocation(unittest.TestCase):
+	@classmethod
+	def setUpClass(cls):
+		frappe.db.sql("delete from `tabLeave Period`")
+
 	def test_overlapping_allocation(self):
 		frappe.db.sql("delete from `tabLeave Allocation`")
 
@@ -177,4 +181,4 @@ def create_leave_allocation(**args):
 	})
 	return leave_allocation
 
-test_dependencies = ["Employee", "Leave Type"]
\ No newline at end of file
+test_dependencies = ["Employee", "Leave Type"]