diff --git a/include/ddc/kernels/splines/spline_builder_batched.hpp b/include/ddc/kernels/splines/spline_builder_batched.hpp
index 12f1771c5..26182c49d 100644
--- a/include/ddc/kernels/splines/spline_builder_batched.hpp
+++ b/include/ddc/kernels/splines/spline_builder_batched.hpp
@@ -127,6 +127,24 @@ class SplineBuilderBatched
         return spline_tr_domain_type(bsplines_domain(), batch_domain());
     }
 
+    derivs_domain_type derivs_xmin_domain() const noexcept
+    {
+        return ddc::replace_dim_of<interpolation_mesh_type, deriv_type>(
+                vals_domain(),
+                ddc::DiscreteDomain<deriv_type>(
+                        ddc::DiscreteElement<deriv_type>(1),
+                        ddc::DiscreteVector<deriv_type>(s_nbc_xmin)));
+    }
+
+    derivs_domain_type derivs_xmax_domain() const noexcept
+    {
+        return ddc::replace_dim_of<interpolation_mesh_type, deriv_type>(
+                vals_domain(),
+                ddc::DiscreteDomain<deriv_type>(
+                        ddc::DiscreteElement<deriv_type>(1),
+                        ddc::DiscreteVector<deriv_type>(s_nbc_xmax)));
+    }
+
     int offset() const noexcept
     {
         return spline_builder.offset();