diff --git a/src/main/java/org/gcube/gcat/oldutils/Validator.java b/src/main/java/org/gcube/gcat/oldutils/Validator.java
index e8fc751..020750d 100644
--- a/src/main/java/org/gcube/gcat/oldutils/Validator.java
+++ b/src/main/java/org/gcube/gcat/oldutils/Validator.java
@@ -337,9 +337,11 @@ public class Validator {
 		
 		// if there was no field with this key and it was not mandatory, just add an entry of the kind {"key": "key-value", "value" : ""}. 
 		// Sometimes it is important to view the field as empty.
+		/*
 		if(fieldsFoundWithThisKey == 0 && !metadataField.getMandatory()) {
 			toReturn.add(new CustomField(metadataFieldName, "", -1, -1));
 		}
+		*/
 		
 		return toReturn;
 		
diff --git a/src/test/java/org/gcube/gcat/persistence/ckan/CKANPackageTest.java b/src/test/java/org/gcube/gcat/persistence/ckan/CKANPackageTest.java
index 9578ba8..6b5dd32 100644
--- a/src/test/java/org/gcube/gcat/persistence/ckan/CKANPackageTest.java
+++ b/src/test/java/org/gcube/gcat/persistence/ckan/CKANPackageTest.java
@@ -307,10 +307,12 @@ public class CKANPackageTest extends ContextTest {
 		typeNode.put(CKANPackage.EXTRAS_VALUE_KEY, EXTRAS_TYPE_VALUE_VALUE);
 		extraArrayNode.add(typeNode);
 		
+		/*
 		ObjectNode modelNode = mapper.createObjectNode();
 		modelNode.put(CKANPackage.EXTRAS_KEY_KEY, "test");
 		modelNode.put(CKANPackage.EXTRAS_VALUE_KEY, "test 2.9°");
 		extraArrayNode.add(modelNode);
+		*/
 		
 		ObjectNode populationNode = mapper.createObjectNode();
 		populationNode.put(CKANPackage.EXTRAS_KEY_KEY, "Population");