diff --git a/client/lib/engine/bin/InventoryLib.py b/client/lib/engine/bin/InventoryLib.py
index e18730f..48a93ee 100755
--- a/client/lib/engine/bin/InventoryLib.py
+++ b/client/lib/engine/bin/InventoryLib.py
@@ -10,6 +10,7 @@ import shutil
 import SystemLib
 import FileSystemLib
 import ogGlobals
+import RegistryLib
 
 MSG_HARDWAREINVENTORY = "Inventario de hardware de la máquina"
 
@@ -42,7 +43,11 @@ def ogGetOsUuid():
 
     # Error si no se reciben 2 parametros.
     if len(sys.argv) != 3:
-        SystemLib.ogRaiseError(OG_ERR_FORMAT)
+        SystemLib.ogRaiseError(
+            "session",
+            ogGlobals.OG_ERR_FORMAT,
+            f"Error: {sys.argv[0]} need 2 arguments.",
+        )
         return
 
     # Montar la particion, si no lo estaba previamente.
@@ -58,7 +63,7 @@ def ogGetOsUuid():
         print(uuid)
     elif os_type == "Windows":
         # Leer identificador en clave de registro.
-        uuid = Registry.ogGetRegistryValue(MNTDIR, "SOFTWARE", "\\Microsoft\\Cryptography\\MachineGuid")
+        uuid = RegistryLib.ogGetRegistryValue(MNTDIR, "SOFTWARE", "\\Microsoft\\Cryptography\\MachineGuid")
         print(uuid)
         
 def ogGetSerialNumber():