diff --git a/app/org/elastic4play/models/ModelDef.scala b/app/org/elastic4play/models/ModelDef.scala
index 67de6a7..7f2a0bc 100644
--- a/app/org/elastic4play/models/ModelDef.scala
+++ b/app/org/elastic4play/models/ModelDef.scala
@@ -108,12 +108,14 @@ class BaseEntity(val model: BaseModelDef, val attributes: JsObject) {
   private final def removeProtectedAttributes(attrs: JsObject) = JsObject {
     attrs.fields
       .map { case (name, value) ⇒ (name, value, model.attributes.find(_.attributeName == name)) }
-      .collect { case (name, value, Some(desc)) if !desc.isSensitive ⇒ name → value }
+      .collect {
+        case (name, value, Some(desc)) if !desc.isSensitive ⇒ name → value
+        case (name, value, _) if name.startsWith("_")       ⇒ name → value
+      }
   }
 
   def toJson = removeProtectedAttributes(attributes) +
-    ("id" → JsString(id)) +
-    ("_type" → JsString(model.modelName))
+    ("id" → JsString(id))
 
   /* compute auxiliary data */
   override def toString = Json.prettyPrint(toJson)
diff --git a/app/org/elastic4play/services/AuxSrv.scala b/app/org/elastic4play/services/AuxSrv.scala
index b2d7eec..414a875 100644
--- a/app/org/elastic4play/services/AuxSrv.scala
+++ b/app/org/elastic4play/services/AuxSrv.scala
@@ -30,7 +30,10 @@ class AuxSrv @Inject() (
     JsObject(
       entity.attributes.fields
         .map { case (name, value) ⇒ (name, value, entity.model.attributes.find(_.attributeName == name)) }
-        .collect { case (name, value, Some(desc)) if !desc.options.contains(AttributeOption.unaudited) ⇒ name → value }) +
+        .collect {
+          case (name, value, Some(desc)) if !desc.options.contains(AttributeOption.unaudited) ⇒ name → value
+          case (name, value, _) if name.startsWith("_")                                       ⇒ name → value
+        }) +
       ("id" → JsString(entity.id)) +
       ("_type" → JsString(entity.model.modelName))
   }