diff --git a/web_widget_x2many_2d_matrix/static/src/js/widget_x2many_2d_matrix.js b/web_widget_x2many_2d_matrix/static/src/js/widget_x2many_2d_matrix.js
index 3e7140704..9e94d17f2 100644
--- a/web_widget_x2many_2d_matrix/static/src/js/widget_x2many_2d_matrix.js
+++ b/web_widget_x2many_2d_matrix/static/src/js/widget_x2many_2d_matrix.js
@@ -68,11 +68,11 @@ odoo.define('web_widget_x2many_2d_matrix.widget', function (require) {
             }
             this.show_row_totals = this.parse_boolean(
                 node.show_row_totals ||
-                this.is_aggregatable(field_defs[this.field_value]) ? '1' : ''
+                (this.is_aggregatable(field_defs[this.field_value]) ? '1' : '')
             );
             this.show_column_totals = this.parse_boolean(
                 node.show_column_totals ||
-                this.is_aggregatable(field_defs[this.field_value]) ? '1' : ''
+                (this.is_aggregatable(field_defs[this.field_value]) ? '1' : '')
             );
         },