diff --git a/erpnext/hr/doctype/leave_allocation/leave_allocation.js b/erpnext/hr/doctype/leave_allocation/leave_allocation.js
index d01f1ba..b7e1f45 100755
--- a/erpnext/hr/doctype/leave_allocation/leave_allocation.js
+++ b/erpnext/hr/doctype/leave_allocation/leave_allocation.js
@@ -11,6 +11,13 @@
 			return {
 				query: "erpnext.controllers.queries.employee_query"
 			}
+		});
+		frm.set_query("leave_type", function() {
+			return {
+				filters: {
+					is_lwp: 0
+				}
+			}
 		})
 	},
 
diff --git a/erpnext/hr/doctype/leave_allocation/leave_allocation.py b/erpnext/hr/doctype/leave_allocation/leave_allocation.py
index 86ed187..3473fd8 100755
--- a/erpnext/hr/doctype/leave_allocation/leave_allocation.py
+++ b/erpnext/hr/doctype/leave_allocation/leave_allocation.py
@@ -23,6 +23,7 @@
 		self.validate_back_dated_allocation()
 		self.set_total_leaves_allocated()
 		self.validate_total_leaves_allocated()
+		self.validate_lwp()
 		set_employee_name(self)
 
 	def on_update_after_submit(self):
@@ -37,6 +38,10 @@
 	def validate_period(self):
 		if date_diff(self.to_date, self.from_date) <= 0:
 			frappe.throw(_("To date cannot be before from date"))
+			
+	def validate_lwp(self):
+		if frappe.db.get_value("Leave Type", self.leave_type, "is_lwp"):
+			frappe.throw(_("Leave Type {0} cannot be allocated since it is leave without pay").format(self.leave_type))
 
 	def validate_new_leaves_allocated_value(self):
 		"""validate that leave allocation is in multiples of 0.5"""