diff --git a/addons/web/static/src/legacy/js/fields/relational_fields.js b/addons/web/static/src/legacy/js/fields/relational_fields.js
index 880ca9aaf28..41d48f03f98 100644
--- a/addons/web/static/src/legacy/js/fields/relational_fields.js
+++ b/addons/web/static/src/legacy/js/fields/relational_fields.js
@@ -1486,8 +1486,8 @@ var FieldX2Many = AbstractField.extend(WidgetAdapterMixin, {
                 addCreateLine: this._hasCreateLine(),
                 addTrashIcon: this._hasTrashIcon(),
                 isMany2Many: this.isMany2Many,
-                no_open: (this.isReadonly && !this.hasReadonlyModifier) &&
-                    (this._canQuickEdit || toBoolElse(arch.attrs.no_open || '', false)),
+                no_open: ((this.isReadonly && !this.hasReadonlyModifier) &&
+                    this._canQuickEdit) || toBoolElse(arch.attrs.no_open || '', false),
                 columnInvisibleFields: this.currentColInvisibleFields,
             });
         }