diff --git a/views/sale_project_view.xml b/views/sale_project_view.xml
index 957b2758050b533b65d474dcfb90da4aa6e8ff34..49b195d3af94fcc8c0be2c899e08cdb453a218ad 100644
--- a/views/sale_project_view.xml
+++ b/views/sale_project_view.xml
@@ -117,7 +117,7 @@
                         type="object"
                         name="action_interventions"
                         string="Interventions"
-                        class="oe_read_only"
+                        class="oe_read_only btn btn-primary"
                     />
                 </tree>
             </field>