diff --git a/src/main/java/org/gcube/informationsystem/base/reference/Element.java b/src/main/java/org/gcube/informationsystem/base/reference/Element.java
index 72f57dc..ee7ce7e 100644
--- a/src/main/java/org/gcube/informationsystem/base/reference/Element.java
+++ b/src/main/java/org/gcube/informationsystem/base/reference/Element.java
@@ -5,6 +5,7 @@ package org.gcube.informationsystem.base.reference;
 
 import java.io.Serializable;
 
+import org.gcube.com.fasterxml.jackson.annotation.JsonIgnore;
 import org.gcube.com.fasterxml.jackson.annotation.JsonTypeInfo;
 import org.gcube.informationsystem.types.annotations.Abstract;
 import org.gcube.informationsystem.types.reference.Change;
@@ -32,6 +33,7 @@ public interface Element extends Serializable {
 	 */
 	public static final String DATETIME_PATTERN = "yyyy-MM-dd HH:mm:ss.SSS Z";
 	
+	@JsonIgnore
 	public String getTypeName();
 	
 }