diff --git a/addons/web/static/src/legacy/legacy_fields.js b/addons/web/static/src/legacy/legacy_fields.js
index b07205d26b7..621f662248e 100644
--- a/addons/web/static/src/legacy/legacy_fields.js
+++ b/addons/web/static/src/legacy/legacy_fields.js
@@ -109,7 +109,7 @@ class FieldAdapter extends ComponentAdapter {
             const proms = [];
             for (const fieldName in payload.changes) {
                 let value = payload.changes[fieldName];
-                const fieldType = record.fields[name].type;
+                const fieldType = record.fields[fieldName].type;
                 if (fieldType === "many2one" && value) {
                     value = [value.id, value.display_name];
                 } else if (fieldType === "one2many" || fieldType === "many2many") {