diff --git a/addons/web_kanban/static/src/js/kanban.js b/addons/web_kanban/static/src/js/kanban.js
index 2b893fe4acd..de263d381d9 100644
--- a/addons/web_kanban/static/src/js/kanban.js
+++ b/addons/web_kanban/static/src/js/kanban.js
@@ -538,7 +538,7 @@ instance.web_kanban.KanbanGroup = instance.web.Widget.extend({
                 } catch(e) {}
             }
             _.each(this.view.aggregates, function(value, key) {
-                self.aggregates[value] = group.get('aggregates')[key];
+                self.aggregates[value] = instance.web.format_value(group.get('aggregates')[key], {type: 'float'});
             });
         }