diff --git a/source/class/qxl/datagrid/column/tree/ExpansionColumn.js b/source/class/qxl/datagrid/column/tree/ExpansionColumn.js
index 11362f6..9d7ca55 100644
--- a/source/class/qxl/datagrid/column/tree/ExpansionColumn.js
+++ b/source/class/qxl/datagrid/column/tree/ExpansionColumn.js
@@ -69,7 +69,7 @@ qx.Class.define("qxl.datagrid.column.tree.ExpansionColumn", {
           await factory.getDataSource().collapseNode(model);
         }
       });
-      bindings.add(widget, listenerId);
+      bindings.add(widget, listenerId, "listener");
       return bindings;
     }
   }