diff --git a/addons/web/static/src/views/form/form_controller.scss b/addons/web/static/src/views/form/form_controller.scss
index 4dec998b667..3b649072c1c 100644
--- a/addons/web/static/src/views/form/form_controller.scss
+++ b/addons/web/static/src/views/form/form_controller.scss
@@ -589,6 +589,10 @@
                         }
                     }
                 }
+                // Prevent table overflow when having long chars in x2many list
+                .o_field_widget:has(.o_field_x2many.o_field_x2many_list) {
+                    width: 100%;
+                }
             }
         }