diff --git a/static/src/js/operation_graph.js b/static/src/js/operation_graph.js
index 4ff520d1ba2f075cb4230481c26801399fb21326..9c844e6f0c26759ef90a5c93ace5a00a6cb5afbd 100644
--- a/static/src/js/operation_graph.js
+++ b/static/src/js/operation_graph.js
@@ -65,8 +65,14 @@ odoo.define('enercoop_cdc.operation_graph', function (require) {
                               text: 'Date'
                             }
                         }]
+                    },
+                elements: {
+                    point:{
+                        radius: 0
                     }
-                }};
+                }
+                },
+                };
             }
             var options = { options: {
                 scales: {
diff --git a/views/enercoop_operation_views.xml b/views/enercoop_operation_views.xml
index 170cb9ad5d7bca1c8acfcb9ffa86b570f041fb5b..e542a583663e1600290bfc6a6f4c8fa8367e46c2 100644
--- a/views/enercoop_operation_views.xml
+++ b/views/enercoop_operation_views.xml
@@ -13,7 +13,7 @@
                             type="object"
                             class="btn-primary"
                             name="action_view_courbes"
-                            attrs="{'invisible':[('date_start_contract', '=', False)]}"/>
+                            attrs="{'invisible':[('enercoop_enedis_cdc_ids', '=', [])]}"/>
                 </header>
             </field>
         </record>