diff --git a/src/main/java/org/gcube/vomanagement/usermanagement/impl/ws/LiferayWSUserManager.java b/src/main/java/org/gcube/vomanagement/usermanagement/impl/ws/LiferayWSUserManager.java
index ab080e9..a6e5642 100644
--- a/src/main/java/org/gcube/vomanagement/usermanagement/impl/ws/LiferayWSUserManager.java
+++ b/src/main/java/org/gcube/vomanagement/usermanagement/impl/ws/LiferayWSUserManager.java
@@ -147,11 +147,11 @@ public class LiferayWSUserManager implements UserManager{
 	private GCubeUser mapLRUser(String json){	
 		try{
 			if (json != null) {
-				logger.info("user json to be parsed: " , json);
+				logger.info("user json to be parsed: " + json);
 				JSONParser parser = new JSONParser();
 				JSONObject userJSON = (JSONObject)parser.parse(json);
 				if(userJSON!=null){
-					logger.info("parsed user json: " , userJSON.toString());
+					logger.info("parsed user json: " + userJSON.toString());
 				}
 				// TODO skip for now
 				List<Email> emails = new ArrayList<Email>();
@@ -166,7 +166,7 @@ public class LiferayWSUserManager implements UserManager{
 					logger.warn("Failed to retrieve property " + USER_LOCATION_INDUSTRY_KEY, e1);
 				}
 				if(userJSON!=null){
-					logger.info("parsed user json: " , userJSON.toString());
+					logger.info("parsed user json: " + userJSON.toString());
 				}
 				// retrieve the contact id information (it is into the user json)
 				String jsonContact;