diff --git a/src/main/java/org/gcube/portlets/user/acceptinvite/PortletViewController.java b/src/main/java/org/gcube/portlets/user/acceptinvite/PortletViewController.java
index 119c878..da4e461 100644
--- a/src/main/java/org/gcube/portlets/user/acceptinvite/PortletViewController.java
+++ b/src/main/java/org/gcube/portlets/user/acceptinvite/PortletViewController.java
@@ -189,7 +189,7 @@ public class PortletViewController {
 		}
 
 		//checking if the user has been already registered or is already in the portal
-		GCubeUser theUser = register(firstName, lastName, email, password);
+		User theUser = register(firstName, lastName, email, password);
 		if (theUser != null)
 			response.getWriter().println("OK");	
 		else
@@ -202,8 +202,8 @@ public class PortletViewController {
 		return matcher.find();
 	}
 
-	private GCubeUser register(String firstName, String lastName, String email, String password1) {
-		GCubeUser toReturn = null;
+	private User register(String firstName, String lastName, String email, String password1) {
+		User toReturn = null;
 		try{
 			_log.debug("Trying createuser " + email);
 			Long defaultCompanyId = PortalUtil.getDefaultCompanyId();
@@ -217,7 +217,7 @@ public class PortletViewController {
 			int birthdayDay = 1;
 			int birthdayYear = 1970;
 			String password2 = password1;
-			User added = UserLocalServiceUtil.addUser(
+			toReturn = UserLocalServiceUtil.addUser(
 					defaultUserId, 
 					defaultCompanyId, 
 					autoPassword, 
@@ -246,8 +246,8 @@ public class PortletViewController {
 					true,
 					new ServiceContext());
 			_log.debug("CreateUser " + lastName + " SUCCESS");
-			UserLocalServiceUtil.updateAgreedToTermsOfUse(added.getUserId(), false);
-			UserLocalServiceUtil.updatePasswordReset(added.getUserId(), false);
+			UserLocalServiceUtil.updateAgreedToTermsOfUse(toReturn.getUserId(), false);
+			UserLocalServiceUtil.updatePasswordReset(toReturn.getUserId(), false);
 
 		}
 		catch(Exception e){
diff --git a/src/main/webapp/WEB-INF/jsp/view.jsp b/src/main/webapp/WEB-INF/jsp/view.jsp
index 51f93b4..d5988ef 100644
--- a/src/main/webapp/WEB-INF/jsp/view.jsp
+++ b/src/main/webapp/WEB-INF/jsp/view.jsp
@@ -30,7 +30,8 @@
 				},
 				success : function(data) {
 					$('#loadingAjaxCallback').css("display", "none");
-					if (data == "OK") {
+					var result = data.toString().trim();
+					if (result == "OK") {
 						$('#successDiv').css("display", "block");
 					} else {
 						$('#errorDiv').css("display", "block");