diff --git a/docs/apidocs/objective.rst b/docs/apidocs/objective.rst
index 676469b..0bd26f2 100644
--- a/docs/apidocs/objective.rst
+++ b/docs/apidocs/objective.rst
@@ -10,3 +10,4 @@ Objective function(s) (:mod:`qiskit_addon_aqc_tensor.objective`)
 .. currentmodule:: qiskit_addon_aqc_tensor.objective
 
 .. autoclass:: OneMinusFidelity
+   :special-members: __call__