diff --git a/equipment.py b/equipment.py
index 4643f5f..3fbc907 100644
--- a/equipment.py
+++ b/equipment.py
@@ -5,7 +5,7 @@ from trytond.exceptions import UserError
 
 class OpticalEquipment(ModelSQL, ModelView):
     'Optical Equipment'
-    __name__ = "optical.equipment"
+    __name__ = "optical_equipment.equipment"
 
     company = fields.Many2One('company.company', "Company")
     location = fields.Many2One('stock.location', "Location")
@@ -30,7 +30,7 @@ class OpticalEquipment(ModelSQL, ModelView):
     serial = fields.Char("Serial", size=None)
     health_register = fields.Char("Health Register", size=None)
 
-    subscription_history = fields.Many2Many('sale.subscription-optical.equipment', 'equipment', 'subscription', "Subscriptions")
+    subscription_history = fields.Many2Many('sale.subscription-optical_equipment.equipment', 'equipment', 'subscription', "Subscriptions")
     
     @staticmethod
     def get_origin():
@@ -43,9 +43,8 @@ class OpticalEquipment(ModelSQL, ModelView):
         for record in records:
             ids.append(record.id)
             
-        Subscriptions = pool.get('sale.subscription-optical.equipment')
+        Subscriptions = pool.get('sale.subscription-optical_equipment.equipment')
         subscriptions = Subscriptions.search([("equipment", 'in', ids)])
-        #raise UserError(str(ids))
         subscriptions_history_id = []
         DICC = {}
         
diff --git a/equipment.xml b/equipment.xml
index a77673e..2c6eee9 100644
--- a/equipment.xml
+++ b/equipment.xml
@@ -9,15 +9,15 @@
             id="menu_equipment"/>
 	<record model="ir.action.act_window" id="act_optical_equipment">
 	    <field name="name">Equipments</field>
-	    <field name="res_model">optical.equipment</field>
+	    <field name="res_model">optical_equipment.equipment</field>
 	</record>
         <record model="ir.ui.view" id="optical_equipment_view_tree">
-            <field name="model">optical.equipment</field>
+            <field name="model">optical_equipment.equipment</field>
             <field name="type">tree</field>
             <field name="name">optical_equipment_tree</field>
         </record>
 	<record model="ir.ui.view" id="optical_equipment_view_form">
-            <field name="model">optical.equipment</field>
+            <field name="model">optical_equipment.equipment</field>
             <field name="type">form</field>
             <field name="name">optical_equipment_form</field>
         </record>
diff --git a/purchase.py b/purchase.py
index f9bbe09..68efbb7 100644
--- a/purchase.py
+++ b/purchase.py
@@ -11,7 +11,7 @@ class Purchase(metaclass=PoolMeta):
     @ModelView.button
     def process(cls, purchases):
         pool = Pool()
-        Equipment = pool.get('optical.equipment')
+        Equipment = pool.get('optical_equipment.equipment')
         #raise UserError(str(type(Equipment)))
         Line = pool.get('purchase.line')
         lines = []
diff --git a/subscription.py b/subscription.py
index cbe2ec7..16704e6 100644
--- a/subscription.py
+++ b/subscription.py
@@ -4,11 +4,11 @@ from trytond.model import ModelSQL, ModelView, fields
 class Subscription(metaclass=PoolMeta):
     __name__ = 'sale.subscription'
 
-    equipments = fields.Many2Many('sale.subscription-optical.equipment', 'subscription', 'equipment', "Equipments")
+    equipments = fields.Many2Many('sale.subscription-optical_equipment.equipment', 'subscription', 'equipment', "Equipments")
 
 class SubscriptionEquipment(ModelSQL):
     'Optical Equipment - Subscription'
-    __name__ = 'sale.subscription-optical.equipment'
+    __name__ = 'sale.subscription-optical_equipment.equipment'
     
-    subscription = fields.Many2One('sale.subscription', 'Subscription', select=True)
-    equipment = fields.Many2One('optical.equipment', 'Equipment', select=True)
+    subscription = fields.Many2One('sale_subscription', 'Subscription', select=True)
+    equipment = fields.Many2One('optical_equipment.equipment', 'Equipment', select=True)
diff --git a/tryton.cfg b/tryton.cfg
index 2f44aff..4fc94a4 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -11,7 +11,6 @@ depends:
     stock
     country
     sale_subscription
-
 xml:
     party.xml
     product.xml