diff --git a/src/main/java/org/gcube/portlets/admin/authportletmanager/shared/PolicyAuth.java b/src/main/java/org/gcube/portlets/admin/authportletmanager/shared/PolicyAuth.java
index bde8b95..99d27c3 100644
--- a/src/main/java/org/gcube/portlets/admin/authportletmanager/shared/PolicyAuth.java
+++ b/src/main/java/org/gcube/portlets/admin/authportletmanager/shared/PolicyAuth.java
@@ -118,7 +118,19 @@ public class PolicyAuth implements Serializable  {
 	 * Get full name 
 	 */
 	public String getServiceAsString(){
-		return service.getServiceClass()+":"+service.getServiceName()+":"+service.getServiceId(); 
+		String serviceClass = service.getServiceClass();
+		String serviceName = service.getServiceName();
+		String serviceId = service.getServiceId();
+		if (serviceClass == null)
+			return "*";
+		StringBuilder toReturn = new StringBuilder(serviceClass);
+		if (serviceName == null)
+			return toReturn.append(":").append("*").toString();
+		toReturn.append(":").append(serviceName);
+		if (serviceId!=null)
+			toReturn.append(":").append(serviceId);
+		
+		return toReturn.toString(); 
 	}
 	/*
 	 * Get full name caller