diff --git a/addons/web/static/src/model/relational_model/relational_model.js b/addons/web/static/src/model/relational_model/relational_model.js
index 897c36a21bb..91b3bbe440d 100644
--- a/addons/web/static/src/model/relational_model/relational_model.js
+++ b/addons/web/static/src/model/relational_model/relational_model.js
@@ -1,7 +1,7 @@
 /* @odoo-module */
 // @ts-check
 
-import { EventBus, markRaw } from "@odoo/owl";
+import { EventBus, markRaw, toRaw } from "@odoo/owl";
 import { makeContext } from "@web/core/context";
 import { Domain } from "@web/core/domain";
 import { WarningDialog } from "@web/core/errors/error_dialogs";
@@ -161,7 +161,7 @@ export class RelationalModel extends Model {
 
     exportState() {
         return {
-            config: this.config,
+            config: toRaw(this.config),
             specialDataCaches: this.specialDataCaches,
         };
     }