diff --git a/firedrake/adjoint/ensemble_reduced_functional.py b/firedrake/adjoint/ensemble_reduced_functional.py
index 28ed23c140..099831f6b6 100644
--- a/firedrake/adjoint/ensemble_reduced_functional.py
+++ b/firedrake/adjoint/ensemble_reduced_functional.py
@@ -84,13 +84,15 @@ def __init__(self, J, control, ensemble, scatter_control=True,
                  scale=1.0, tape=None, eval_cb_pre=lambda *args: None,
                  eval_cb_post=lambda *args: None,
                  derivative_cb_pre=lambda controls: controls,
-                 derivative_cb_post=lambda checkpoint, derivative_components, controls: derivative_components
-                 ):
+                 derivative_cb_post=lambda checkpoint, derivative_components, controls: derivative_components,
+                 hessian_cb_pre=lambda *args: None, hessian_cb_post=lambda *args: None):
         super(EnsembleReducedFunctional, self).__init__(
             J, control, derivative_components=derivative_components,
             scale=scale, tape=tape, eval_cb_pre=eval_cb_pre,
             eval_cb_post=eval_cb_post, derivative_cb_pre=derivative_cb_pre,
-            derivative_cb_post=derivative_cb_post)
+            derivative_cb_post=derivative_cb_post,
+            hessian_cb_pre=hessian_cb_pre, hessian_cb_post=hessian_cb_post)
+
         self.ensemble = ensemble
         self.scatter_control = scatter_control
         self.gather_functional = gather_functional