diff --git a/app/views/bootstrap/_modal.haml b/app/views/bootstrap/_modal.haml
index 28014c6a..3efd1525 100644
--- a/app/views/bootstrap/_modal.haml
+++ b/app/views/bootstrap/_modal.haml
@@ -28,7 +28,7 @@
 
 .modal.fade{ tabindex: -1, aria: { hidden: 'true' }, data: { target: 'modal.modal' } }
   .modal-backdrop.fade{ data: { target: 'modal.backdrop', action: local_assigns[:hide_actions].join(' ') } }
-  .modal-dialog.modal-dialog-scrollable.modal-dialog-centered
+  .modal-dialog.modal-dialog-scrollable.modal-dialog-centered.modal-lg
     .modal-content{ **local_assigns[:modal_content_attributes] }
       - if (header = yield(:"#{id}_header")).present?
         .modal-header= header