1 files changed, 4 insertions, 2 deletions
diff --git a/addons/web/static/src/js/fields/relational_fields.js b/addons/web/static/src/js/fields/relational_fields.js
index 83ce59f1eb6..bf2c303a2bb 100644
--- a/addons/web/static/src/js/fields/relational_fields.js
+++ b/addons/web/static/src/js/fields/relational_fields.js
@@ -1293,12 +1293,14 @@ var FieldOne2Many = FieldX2Many.extend({
      */
     _onAddRecord: function (ev) {
         var self = this;
+        var data = ev.data || {};
+
         // we don't want interference with the components upstream.
         ev.stopPropagation();
         if (this.editable) {
             if (!this.activeActions.create) {
-                if (ev.data.onFail) {
-                    ev.data.onFail();
+                if (data.onFail) {
+                    data.onFail();
                 }
             } else if (!this.creatingRecord) {
                 this.creatingRecord = true;