diff --git a/netforce_clinic/models/labor_cost.py b/netforce_clinic/models/labor_cost.py
index 8606871..c6f0699 100644
--- a/netforce_clinic/models/labor_cost.py
+++ b/netforce_clinic/models/labor_cost.py
@@ -281,7 +281,10 @@ class LaborCost(Model):
         # cost's nurses
         for line in item.lines:
             nurse=line.nurse_id
-            level=line.level_id or nurse.level_id
+            #level=line.level_id or nurse.level_id
+            level=nurse.level_id
+            if not level:
+                raise Exception("Please specify level for %s"%nurse.name)
             vals=levels.get(level.id)
             rate,amt,qty=0.0,0.0,0
             level_id=level.id