diff --git a/src/main/java/org/gcube/common/storagehubwrapper/server/WorkspaceStorageHubClientService.java b/src/main/java/org/gcube/common/storagehubwrapper/server/WorkspaceStorageHubClientService.java
index b773650..6b0cb4b 100644
--- a/src/main/java/org/gcube/common/storagehubwrapper/server/WorkspaceStorageHubClientService.java
+++ b/src/main/java/org/gcube/common/storagehubwrapper/server/WorkspaceStorageHubClientService.java
@@ -986,7 +986,7 @@ public final class WorkspaceStorageHubClientService implements Workspace{
 	@Override
 	public long getDiskUsage() throws Exception{
 		try{
-			return storageHubClientService.getTotalItems();
+			return storageHubClientService.getDiskUsage();
 		}catch(Exception e){
 			String error = "Error on getting disk usage: ";
 			LOGGER.error(error,e);