diff --git a/odoo-rpc.py b/odoo-rpc.py
index adec8bb..8746f32 100755
--- a/odoo-rpc.py
+++ b/odoo-rpc.py
@@ -477,7 +477,8 @@ def save( model, domains ):
 	to_browse = {}
 	for muid in unique_models:
 		model, id = muid.split('/')
-		to_browse[model] = [] if not model in to_browse
+		if not model in to_browse:
+			to_browse[model] = [] 
 		to_browse[model] += id
 	
 	return to_browse