diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index 40f2f7c99a..89c37729bd 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -7843,11 +7843,6 @@ system and gives an overview of their function and contents.
       class, this variable can be used to specify additional arguments to be
       passed to ``setup.py build`` in the ``setuptools3_do_compile()`` task.
 
-   :term:`SETUPTOOLS_INSTALL_ARGS`
-      When used by recipes that inherit the :ref:`ref-classes-setuptools3`
-      class, this variable can be used to specify additional arguments to be
-      passed to ``setup.py install`` in the ``setuptools3_do_install()`` task.
-
    :term:`SETUPTOOLS_SETUP_PATH`
       When used by recipes that inherit the :ref:`ref-classes-setuptools3`
       class, this variable should be used to specify the directory in which