diff --git a/.settings/org.eclipse.wst.common.component b/.settings/org.eclipse.wst.common.component
index 2ff775f..f33b821 100644
--- a/.settings/org.eclipse.wst.common.component
+++ b/.settings/org.eclipse.wst.common.component
@@ -4,6 +4,9 @@
     <wb-resource deploy-path="/" source-path="/src/main/webapp" tag="defaultRootSource"/>
     <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/java"/>
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/resources"/>
+        <dependent-module archiveName="invites-common-library-1.3.0-SNAPSHOT.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/invites-common-library/invites-common-library">
+            <dependency-type>uses</dependency-type>
+        </dependent-module>
     <property name="java-output-path" value="/${module}/target/www/WEB-INF/classes"/>
         <property name="context-root" value="join-vre"/>
   </wb-module>
diff --git a/src/main/java/org/gcube/portlets/user/joinvre/server/JoinServiceImpl.java b/src/main/java/org/gcube/portlets/user/joinvre/server/JoinServiceImpl.java
index ff76b21..cadc722 100644
--- a/src/main/java/org/gcube/portlets/user/joinvre/server/JoinServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/joinvre/server/JoinServiceImpl.java
@@ -406,8 +406,12 @@ public class JoinServiceImpl extends RemoteServiceServlet implements JoinService
 		_log.debug("initStore OK");
 	
 		String email = PortalContext.getConfiguration().getCurrentUser(getThreadLocalRequest()).getEmail();
-		String infraScope = PortalContext.getConfiguration().getCurrentScope(getThreadLocalRequest());
-
+		String infraScope = null;
+		try {
+			infraScope = new LiferayGroupManager().getInfrastructureScope(groupId);
+		} catch (UserManagementSystemException | GroupRetrievalFault e) {
+			e.printStackTrace();
+		}
 		_log.debug("checking if invite exists for " + email + " on " +infraScope);
 		return store.isExistingInvite(infraScope, email);
 	}