diff --git a/src/cli/one_helper/onevm_helper.rb b/src/cli/one_helper/onevm_helper.rb
index 7cc242ab71..f4dd7ce4c0 100644
--- a/src/cli/one_helper/onevm_helper.rb
+++ b/src/cli/one_helper/onevm_helper.rb
@@ -1019,7 +1019,7 @@ class OneVMHelper < OpenNebulaHelper::OneHelper
         snapshots.each do |snapshot|
             disk_id = snapshot["DISK_ID"]
             snap_id = snapshot["ID"]
-            xpath = "SNAPSHOTS[DISK_ID='#{disk_id}']/SNAPSHOT[ID='#{snap_id}']/SIZE"
+            xpath = "MONITORING/SNAPSHOT_SIZE[ID='#{snap_id}' and DISK_ID='#{disk_id}']/SIZE"
             snapshot["MONITOR_SIZE"] = vm[xpath]
         end