diff --git a/wizard/res_partner_contract_wizard.py b/wizard/res_partner_contract_wizard.py
index f7e5916..6934301 100644
--- a/wizard/res_partner_contract_wizard.py
+++ b/wizard/res_partner_contract_wizard.py
@@ -37,7 +37,7 @@ class ContractWizard(models.TransientModel):
     )
 
     @api.onchange("document_template")
-    def _onchange_target(self):
+    def _onchange_document_template(self):
         """Creates transient fields for generate contract template
         Looks as a tree view of *_contract_field_transient model in xml
         """
diff --git a/wizard/res_partner_contract_wizard.xml b/wizard/res_partner_contract_wizard.xml
index 4080854..376423c 100644
--- a/wizard/res_partner_contract_wizard.xml
+++ b/wizard/res_partner_contract_wizard.xml
@@ -11,11 +11,16 @@
                 <group string="Template">
                     <field name="document_template"></field>
                 </group>
-                <group name="requisites" string="Requisites">
+
+                <group invisible="1">
+                    <!-- Need for generate a document -->
                     <field name="target"/>
-                    <field name="partner_id" string="Partner" readonly="1"/>
-                    <field name="company_id" string="Seller" readonly="1"/>
+                    <field name="partner_id"/>
+                    <field name="company_id"/>
                 </group>
+                
+                <button string="Create a document" type="object" name="get_docx_contract" />
+
                 <group string="Contract values" colspan="4">
                     <field name="transient_field_ids">
                         <tree editable="1" create="0" delete="0">
@@ -27,8 +32,6 @@
                     </field>
                 </group>
 
-                <button string="Create a document" type="object" name="get_docx_contract" />
-
                 <footer/>
 
             </form>
@@ -45,9 +48,16 @@
                 <group string="Template">
                     <field name="document_template"></field>
                 </group>
-                <group name="info" string="Info">
+
+                <group invisible="1">
+                    <!-- Need for generate a document -->
                     <field name="target"/>
+                    <field name="partner_id"/>
+                    <field name="company_id"/>
                 </group>
+                
+                <button string="Create a document" type="object" name="get_docx_contract" />
+                
                 <group string="Annex values" colspan="4">
                     <field name="transient_field_ids">
                         <tree editable="1" create="0" delete="0">
@@ -59,8 +69,6 @@
                     </field>
                 </group>
 
-                <button string="Create a document" type="object" name="get_docx_contract" />
-
                 <footer/>
 
             </form>