diff --git a/src/main/java/org/gcube/smartgears/connector/resourceregistry/resourcemanager/HostingNodeManager.java b/src/main/java/org/gcube/smartgears/connector/resourceregistry/resourcemanager/HostingNodeManager.java
index 0601196..e418e5c 100644
--- a/src/main/java/org/gcube/smartgears/connector/resourceregistry/resourcemanager/HostingNodeManager.java
+++ b/src/main/java/org/gcube/smartgears/connector/resourceregistry/resourcemanager/HostingNodeManager.java
@@ -437,7 +437,7 @@ public class HostingNodeManager {
 		try {
 			PersistenceConfiguration persistenceConfiguration = containerContext.configuration().persistenceConfiguration();
 			FileStore fileStore = Files
-					.getFileStore(Paths.get(persistenceConfiguration.getImplementationClass().newInstance().getLocation()));
+					.getFileStore(Paths.get(persistenceConfiguration.getWriterConfiguration().getLocation()));
 			free = fileStore.getUsableSpace() / 1048576; // 1048576 = 1024*1024
 			// user to convert
 			// bytes in MByte