diff --git a/web_m2x_options/static/src/components/form.esm.js b/web_m2x_options/static/src/components/form.esm.js
index 51c3c69ac..b18ba530e 100644
--- a/web_m2x_options/static/src/components/form.esm.js
+++ b/web_m2x_options/static/src/components/form.esm.js
@@ -325,7 +325,7 @@ patch(FormController.prototype, {
      * add more method to add subview limit on formview
      */
     async _setSubViewLimit() {
-        const ir_options = session.web_m2x_options;
+        const ir_options = session.web_m2x_options || {};
         const activeFields = this.archInfo.fieldNodes,
             isSmall = this.user;