diff --git a/addons/web/static/src/views/form/form_controller.scss b/addons/web/static/src/views/form/form_controller.scss
index 98c35bcb36e..8474d9e2b83 100644
--- a/addons/web/static/src/views/form/form_controller.scss
+++ b/addons/web/static/src/views/form/form_controller.scss
@@ -779,7 +779,7 @@ $o-form-label-margin-right: 0px;
     }
 }
 
-.o_xxl_form_view {
+.o_form_view.o_xxl_form_view {
     flex-flow: row nowrap;
 
     .o_form_sheet_bg {