diff --git a/qiskit_optimization/__init__.py b/qiskit_optimization/__init__.py
index f6ae8e1c7..b76a42f4f 100644
--- a/qiskit_optimization/__init__.py
+++ b/qiskit_optimization/__init__.py
@@ -68,9 +68,7 @@
    :toctree: ../stubs/
    :nosignatures:
 
-    INFINITY
-
-A constant for infinity.
+    ~qiskit_optimization.infinity.INFINITY
 
 Submodules
 ==========
diff --git a/qiskit_optimization/infinity.py b/qiskit_optimization/infinity.py
index 16f3b3e27..95b6e8aad 100644
--- a/qiskit_optimization/infinity.py
+++ b/qiskit_optimization/infinity.py
@@ -14,3 +14,4 @@
 
 
 INFINITY = 1.0e20  # pylint: disable=invalid-name
+""" A constant for infinity. """