diff --git a/erpnext/hr/doctype/leave_allocation/leave_allocation.py b/erpnext/hr/doctype/leave_allocation/leave_allocation.py
index 6740c6e..331a82b 100755
--- a/erpnext/hr/doctype/leave_allocation/leave_allocation.py
+++ b/erpnext/hr/doctype/leave_allocation/leave_allocation.py
@@ -77,7 +77,9 @@
 			frappe.throw(_("Total leaves allocated is mandatory"))
 
 	def validate_total_leaves_allocated(self):
-		if date_diff(self.to_date, self.from_date) <= flt(self.total_leaves_allocated):
+		# Adding a day to include To Date in the difference
+		date_difference = date_diff(self.to_date, self.from_date) + 1
+		if date_difference < self.total_leaves_allocated:
 			frappe.throw(_("Total allocated leaves are more than days in the period"), OverAllocationError)
 			
 	def validate_against_leave_applications(self):