diff --git a/odoo-rpc.py b/odoo-rpc.py
index b689f74..816e85d 100755
--- a/odoo-rpc.py
+++ b/odoo-rpc.py
@@ -338,7 +338,7 @@ def flatten_stack( data ):
 	
 	def flatten( obj ):
 		if type(obj) == dict:
-			key = obj.keys()[0]
+			key = obj.keys()[0] if obj.keys()[0] != 'file' else obj.keys()[1]
 			flat.append( key )
 			for field in obj[key].keys():
 				flatten( obj[key][field] )