diff --git a/src/operations/operationList.component.ts b/src/operations/operationList.component.ts
index d4b51ca..9601c26 100644
--- a/src/operations/operationList.component.ts
+++ b/src/operations/operationList.component.ts
@@ -50,7 +50,7 @@ import { OperationEditModalComponent } from './operationEditModal.component';
         <tbody>
           <tr>
             <td colspan="7">
-              <button mz-button class="green lighten2" (click)="add()">
+              <button mz-button class="green" (click)="add()">
                 Ajouter
               </button>
             </td>