diff --git a/src/Bundle/ChillDocStoreBundle/Resources/public/module/async_upload/uploader.js b/src/Bundle/ChillDocStoreBundle/Resources/public/module/async_upload/uploader.js
index 3fcfb0a42..6cb68fcea 100644
--- a/src/Bundle/ChillDocStoreBundle/Resources/public/module/async_upload/uploader.js
+++ b/src/Bundle/ChillDocStoreBundle/Resources/public/module/async_upload/uploader.js
@@ -280,10 +280,10 @@ var insertRemoveButton = (zone, zoneData) => {
         labelCancel = 'Restaurer'
         ;
     
-    removeButton.classList.add('sc-button', 'bt-delete');
+    removeButton.classList.add('btn', 'btn-delete');
     removeButton.textContent = labelRemove;
     
-    cancelButton.classList.add('sc-button');
+    cancelButton.classList.add('btn', 'btn-cancel');
     cancelButton.textContent = labelCancel;
     
     removeButton.addEventListener('click', (e) => {
@@ -355,7 +355,7 @@ var insertDownloadButton = (zone, zoneData) => {
     newButton.dataset.labelPreparing = labelPreparing;
     newButton.dataset.labelReady = labelReady;
     newButton.dataset.tempUrlGetGenerator = tempUrlGenerator + '?' + tempUrlGeneratorParams.toString();
-    newButton.classList.add('sc-button', 'bt-download', 'dz-bt-below-dropzone');
+    newButton.classList.add('btn', 'btn-download', 'dz-bt-below-dropzone');
     newButton.textContent = labelQuietButton;
     
     addBelowButton(newButton, zone, zoneData);
diff --git a/src/Bundle/ChillMainBundle/Resources/public/modules/download-report/download-report.js b/src/Bundle/ChillMainBundle/Resources/public/modules/download-report/download-report.js
index 1900c04cf..c7b7bb59a 100644
--- a/src/Bundle/ChillMainBundle/Resources/public/modules/download-report/download-report.js
+++ b/src/Bundle/ChillMainBundle/Resources/public/modules/download-report/download-report.js
@@ -46,7 +46,7 @@ var download_report = (url, container) => {
             extension = mime.extension(type);
 
             link.appendChild(document.createTextNode(download_text));
-            link.classList.add("sc-button", "btn-action");
+            link.classList.add("btn", "btn-action");
             link.href = content;
             link.download = alias;
             if (extension !== false) {
diff --git a/src/Bundle/ChillTaskBundle/Workflow/Definition/DefaultTaskDefinition.php b/src/Bundle/ChillTaskBundle/Workflow/Definition/DefaultTaskDefinition.php
index 64b753875..64f5c7acc 100644
--- a/src/Bundle/ChillTaskBundle/Workflow/Definition/DefaultTaskDefinition.php
+++ b/src/Bundle/ChillTaskBundle/Workflow/Definition/DefaultTaskDefinition.php
@@ -31,21 +31,21 @@ class DefaultTaskDefinition implements \Chill\TaskBundle\Workflow\TaskWorkflowDe
     const TRANSITION_METADATA = [
         'close' => [
             'verb' => 'close',
-            'class' => 'sc-button bt-task-label bt-task-close',
+            'class' => 'btn btn-task-label btn-task-close',
             'sentence' => '%user% has closed the task',
             'sentence_confirmation' => 'Are you sure you want to close this task ?',
             'apply_transition_submit_label' => 'Close_verb'
         ],
         'cancel' => [
             'verb' => 'cancel',
-            'class' => 'sc-button bt-task-label bt-task-cancel',
+            'class' => 'btn btn-task-label btn-task-cancel',
             'sentence' => '%user% has canceled the task',
             'sentence_confirmation' => 'Are you sure you want to cancel this task ?',
             'apply_transition_submit_label' => 'Set this task to cancel state'
         ],
         'start' => [
             'verb' => 'start',
-            'class' => 'sc-button bt-task-label bt-task-start',
+            'class' => 'btn btn-task-label btn-task-start',
             'sentence' => '%user% has started the task',
             'sentence_confirmation' => 'Are you sure you want to start this task ?',
             'apply_transition_submit_label' => 'Start_verb'