diff --git a/odoo/models.py b/odoo/models.py
index 9a5fb28218e..2086c137a61 100644
--- a/odoo/models.py
+++ b/odoo/models.py
@@ -5031,10 +5031,11 @@ class BaseModel(MetaModel('DummyModel', (object,), {'_register': False})):
                 subtree = subtree[name]
 
         # collect values from dirty fields
-        result['value'] = {
-            name: self._fields[name].convert_to_onchange(record[name], record, subnames[name])
-            for name in dirty
-        }
+        with env.do_in_onchange():
+            result['value'] = {
+                name: self._fields[name].convert_to_onchange(record[name], record, subnames[name])
+                for name in dirty
+            }
 
         return result