diff --git a/src/main/java/org/gcube/portal/ldapexport/LDAPExportService.java b/src/main/java/org/gcube/portal/ldapexport/LDAPExportService.java
index 0a8f351..b30f0e3 100644
--- a/src/main/java/org/gcube/portal/ldapexport/LDAPExportService.java
+++ b/src/main/java/org/gcube/portal/ldapexport/LDAPExportService.java
@@ -23,14 +23,14 @@ import org.gcube.common.resources.gcore.utils.Group;
 import org.gcube.common.scope.api.ScopeProvider;
 import org.gcube.resources.discovery.client.api.DiscoveryClient;
 import org.gcube.resources.discovery.client.queries.api.SimpleQuery;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import com.liferay.portal.kernel.log.Log;
+import com.liferay.portal.kernel.log.LogFactoryUtil;
 
 
 @SuppressWarnings("serial")
 public class LDAPExportService extends HttpServlet {
 
-	private static final Logger _log = LoggerFactory.getLogger(LDAPExportService.class);
+	private static final Log _log = LogFactoryUtil.getLog(LDAPExportService.class);
 
 	private  static final String LDAP_SERVER_NAME = "LDAPServer";
 	private  static final String LDAP_SERVER_FILTER_NAME = "filter";