diff --git a/addons/sale_timesheet/static/src/components/so_line_field/so_line_field.js b/addons/sale_timesheet/static/src/components/so_line_field/so_line_field.js
index e26f2e937e7..00c4101ad8b 100644
--- a/addons/sale_timesheet/static/src/components/so_line_field/so_line_field.js
+++ b/addons/sale_timesheet/static/src/components/so_line_field/so_line_field.js
@@ -2,6 +2,7 @@
 
 import { registry } from "@web/core/registry";
 import { Many2OneField } from "@web/views/fields/many2one/many2one_field";
+import { X2ManyField } from "@web/views/fields/x2many/x2many_field";
 
 export class SoLineField extends Many2OneField {
     setup() {
@@ -17,5 +18,8 @@ export class SoLineField extends Many2OneField {
     }
 }
 
-registry.category("fields").add('so_line_one2many', registry.category('fields').get("one2many")); // TODO: Remove me when the gantt view is converted in OWL
+export class TimesheetsOne2ManyField extends X2ManyField {}
+TimesheetsOne2ManyField.additionalClasses = ['o_field_one2many'];
+registry.category("fields").add('so_line_one2many', TimesheetsOne2ManyField); // TODO: Remove me when the gantt view is converted in OWL
+
 registry.category("fields").add("so_line_field", SoLineField);