diff --git a/docs/source/pythonapi/deplete.rst b/docs/source/pythonapi/deplete.rst
index 532e06655..091b25da7 100644
--- a/docs/source/pythonapi/deplete.rst
+++ b/docs/source/pythonapi/deplete.rst
@@ -75,10 +75,24 @@ data, such as number densities and reaction rates for each material.
    :template: myclass.rst
 
    AtomNumber
+   ChainFissHelper
+   DirectRxnRateHelper
    OperatorResult
    ReactionRates
    Results
    ResultsList
+
+
+The following classes are abstract classes that can be used to extend the
+:mod:`openmc.deplete` capabilities:
+
+.. autosummary::
+   :toctree:generated
+   :nosignatures:
+   :template: myclass.rst
+
+   ReactionRateHelper
+   FissionEnergyHelper
    TransportOperator
 
 Each of the integrator functions also relies on a number of "helper" functions