diff --git a/lodel/leapi/datahandlers/references.py b/lodel/leapi/datahandlers/references.py
index e6460fd..ca2d002 100644
--- a/lodel/leapi/datahandlers/references.py
+++ b/lodel/leapi/datahandlers/references.py
@@ -59,6 +59,7 @@ class List(MultipleRef):
                 query_filters = list()
                 query_filters.append((br_class.uid_fieldname()[0], '=', br_id))
                 br_obj = br_class.get(query_filters)
+                # if br_obj.__class__ not in 
                 if len(br_obj) == 0:
                     raise ValueError("Not existing instance of class %s in back_reference" % br_class.__name__)
                 br_list = br_obj.data(self.back_reference()[1])
diff --git a/plugins/webui/templates/admin/editable_component.html b/plugins/webui/templates/admin/editable_component.html
index 747f8cc..71386ac 100644
--- a/plugins/webui/templates/admin/editable_component.html
+++ b/plugins/webui/templates/admin/editable_component.html
@@ -12,7 +12,7 @@
         {% endif %}
         {% if field.directly_editable %}
             <input id="{{fieldname}}" name="field_input_{{fieldname}}" type="text" value="{{sval}}" >
-            {% set l_classe = field.l_classes %}
+            {% set l_classe = field.allowed_classes %}
             <p> Please enter uids to instances of {{ l_classe.__name__ }} separated by commas </p>
         {% else %}
             <input id="{{fieldname}}" name="field_input_{{fieldname}}" type="text" value="{{sval}}" readonly >