diff --git a/equipment.xml b/equipment.xml
index 4fd3549..a2d4d35 100644
--- a/equipment.xml
+++ b/equipment.xml
@@ -184,6 +184,18 @@
             <field name="keyword">form_print</field>
             <field name="model">optical_equipment.equipment,-1</field>
             <field name="action" ref="report_equipment"/>
+    	</record>
+	<record model="ir.action.report" id="report_history_maintenance">
+            <field name="name">Maintenance History</field>
+            <field name="model">optical_equipment.equipment</field>
+            <field name="report_name">optical_equipment.equipment</field>
+            <field name="report">report/maintenance_history.fodt</field>
+            <field name="single" eval="True"/>
+        </record>
+	<record model="ir.action.keyword" id="report_history_maintenance_keyword">
+            <field name="keyword">form_print</field>
+            <field name="model">optical_equipment.equipment,-1</field>
+            <field name="action" ref="report_history_maintenance"/>
         </record>
     </data>
 </tryton>
diff --git a/maintenance.py b/maintenance.py
index 02e5dee..3aafa09 100644
--- a/maintenance.py
+++ b/maintenance.py
@@ -214,6 +214,7 @@ class Maintenance(Workflow, ModelSQL, ModelView):
     calibration_total = fields.One2Many('optical_equipment.maintenance.calibration', 'maintenance', "Calibration Total",
                                         states={'readonly': Eval('state') == 'finished'})
     maintenance_lines = fields.One2Many('optical_equipment.maintenance.line', 'maintenance', 'Lines')
+    description_activity = fields.Char('Activity')
 
     @classmethod
     def __setup__(cls):
diff --git a/view/maintenance_form.xml b/view/maintenance_form.xml
index 3a9376c..30d821c 100644
--- a/view/maintenance_form.xml
+++ b/view/maintenance_form.xml
@@ -16,6 +16,9 @@
     <field name="equipment"/>
     <label name="service_maintenance"/>
     <field name="service_maintenance"/>
+    <newline/>
+    <label name="description_activity"/>
+    <field name="description_activity" colspan="3"/>
     <notebook colspan="6">
 	<page string="Preventive" id="preventive">
 	    <label name="initial_operation"/>