diff --git a/rma_sale/__manifest__.py b/rma_sale/__manifest__.py
index 508aa6f8..0b4a763f 100644
--- a/rma_sale/__manifest__.py
+++ b/rma_sale/__manifest__.py
@@ -3,7 +3,7 @@
 
 {
     'name': 'Hibou RMAs for Sale Orders',
-    'version': '11.0.1.0.0',
+    'version': '11.0.1.1.0',
     'category': 'Sale',
     'author': "Hibou Corp.",
     'license': 'AGPL-3',
@@ -16,6 +16,7 @@
     'data': [
         'security/ir.model.access.csv',
         'views/rma_views.xml',
+        'views/sale_views.xml',
         'wizard/rma_lines_views.xml',
     ],
     'demo': [
diff --git a/rma_sale/models/__init__.py b/rma_sale/models/__init__.py
index 0031f431..7efbd9ec 100644
--- a/rma_sale/models/__init__.py
+++ b/rma_sale/models/__init__.py
@@ -1 +1,2 @@
 from . import rma
+from . import sale
diff --git a/rma_sale/models/sale.py b/rma_sale/models/sale.py
new file mode 100644
index 00000000..eee41038
--- /dev/null
+++ b/rma_sale/models/sale.py
@@ -0,0 +1,14 @@
+from odoo import api, fields, models
+
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order'
+
+    rma_count = fields.Integer(string='RMA Count', compute='_compute_rma_count', compute_sudo=True)
+    rma_ids = fields.One2many('rma.rma', 'sale_order_id', string='RMAs')
+
+    @api.multi
+    @api.depends('rma_ids')
+    def _compute_rma_count(self):
+        for so in self:
+            so.rma_count = len(so.rma_ids)
diff --git a/rma_sale/views/sale_views.xml b/rma_sale/views/sale_views.xml
new file mode 100644
index 00000000..4713945b
--- /dev/null
+++ b/rma_sale/views/sale_views.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <record id="view_order_form_inherit" model="ir.ui.view">
+        <field name="name">sale.order.form.inherit</field>
+        <field name="model">sale.order</field>
+        <field name="inherit_id" ref="sale.view_order_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//div[@name='button_box']" position="inside">
+                <button name="%(rma.action_rma_rma)d" type="action" class="oe_stat_button" icon="fa-cubes"
+                        attrs="{'invisible': [('rma_count', '=', 0)]}"
+                        context="{'search_default_sale_order_id': active_id}">
+                    <div class="o_field_widget o_stat_info">
+                        <span class="o_stat_value"><field name="rma_count"/></span> RMA
+                    </div>
+                </button>
+            </xpath>
+        </field>
+    </record>
+</odoo>
\ No newline at end of file