diff --git a/modules/supplier/front/billing-data/index.html b/modules/supplier/front/billing-data/index.html
index 2cb3f7c4b..0fb7011b8 100644
--- a/modules/supplier/front/billing-data/index.html
+++ b/modules/supplier/front/billing-data/index.html
@@ -52,12 +52,13 @@
     <vn-button-bar>
         <vn-submit
             label="Save"
-            ng-if="watcher.dataChanged()"
+            disabled="!watcher.dataChanged()"
             vn-acl="salesAssistant">
         </vn-submit>
         <vn-button
+            class="cancel"
             label="Undo changes"
-            ng-if="watcher.dataChanged()"
+            disabled="!watcher.dataChanged()"
             ng-click="watcher.loadOriginalData()">
         </vn-button>
     </vn-button-bar>