diff --git a/odoo/tools/cache.py b/odoo/tools/cache.py
index 9cb568356b5b4..854064d63c576 100644
--- a/odoo/tools/cache.py
+++ b/odoo/tools/cache.py
@@ -59,7 +59,7 @@ def __call__(self, method):
         self.method = method
         self.determine_key()
         lookup = decorator(self.lookup, method)
-        lookup.__cache__ = self
+        lookup.cache = self
         return lookup
 
     def add_value(self, *args, cache_value=None, **kwargs):