diff --git a/src/main/java/org/gcube/portal/databook/server/RunningCluster.java b/src/main/java/org/gcube/portal/databook/server/RunningCluster.java
index 232db77..c1b843a 100644
--- a/src/main/java/org/gcube/portal/databook/server/RunningCluster.java
+++ b/src/main/java/org/gcube/portal/databook/server/RunningCluster.java
@@ -108,7 +108,7 @@ public class RunningCluster implements Serializable {
 		if(infrastructureName != null && !infrastructureName.isEmpty())
 			scope += infrastructureName;
 		else {
-			scope = context.getInfrastructureName();
+			scope += context.getInfrastructureName();
 			_log.debug("infrastrucute name is null, setting root scope=" + scope);
 		}
 		String currScope = 	ScopeProvider.instance.get();