diff --git a/singletree.py b/singletree.py
index da2ed36..a2115b9 100644
--- a/singletree.py
+++ b/singletree.py
@@ -55,8 +55,8 @@ ui_tmpl = """
 		"parentField":"{{parentField}}",
 		"idField":"{{idField}}",
 		"textField":"{{textField}}",
-{% if dataparams %}
-		"dataparams": {{json.dumps(dataparams)}},
+{% if params %}
+		"params": {{json.dumps(params)}},
 {% endif %}
 {% if newdata_params %}
 		"newdata_params":{{json.dumps(newdata_params)}},