diff --git a/addons/web_kanban/static/src/js/kanban_view.js b/addons/web_kanban/static/src/js/kanban_view.js
index 9c9342da41c..1ba3b0f4f8e 100644
--- a/addons/web_kanban/static/src/js/kanban_view.js
+++ b/addons/web_kanban/static/src/js/kanban_view.js
@@ -364,6 +364,7 @@ var KanbanView = View.extend({
             this.$el.addClass('o_kanban_grouped');
             this.render_grouped(fragment);
         } else if (this.data.is_empty) {
+            this.$el.addClass('o_kanban_ungrouped');
             this.render_no_content(fragment);
         } else {
             this.$el.addClass('o_kanban_ungrouped');