diff --git a/src/main/java/org/gcube/portlets/user/wswidget/StorageHubServiceUtil.java b/src/main/java/org/gcube/portlets/user/wswidget/StorageHubServiceUtil.java
index 5924c32..864c9df 100644
--- a/src/main/java/org/gcube/portlets/user/wswidget/StorageHubServiceUtil.java
+++ b/src/main/java/org/gcube/portlets/user/wswidget/StorageHubServiceUtil.java
@@ -161,9 +161,9 @@ public class StorageHubServiceUtil {
 		String toReturn = "";
 		PortalContext pContext = PortalContext.getConfiguration();
 		String currentContext = PortalContext.getConfiguration().getCurrentScope(""+groupId);
-		long userId = pContext.getCurrentUser(request).getUserId();
+		String username = pContext.getCurrentUser(request).getUsername();
 		try {
-			JWTToken umaToken = OIDCUmaUtil.getUMAToken(request, userId, currentContext);
+			JWTToken umaToken = OIDCUmaUtil.getUMAToken(request, username, currentContext);
 			UmaJWTProvider.instance.set(umaToken.getRaw());
 		} catch (InvalidTokenException | MissingTokenException | RefreshException | NotAuthorizedException
 				| UMAException e1) {