diff --git a/luigi/parameter.py b/luigi/parameter.py
index 769508b17c..dd3e3167e2 100644
--- a/luigi/parameter.py
+++ b/luigi/parameter.py
@@ -74,7 +74,7 @@ class DuplicateParameterException(ParameterException):
 
 class Parameter(object):
     """
-    An untyped Parameter
+    Parameter whose value is a ``str``, and a base class for other parameter types.
 
     Parameters are objects set on the Task class level to make it possible to parameterize tasks.
     For instance:
@@ -108,9 +108,6 @@ def run(self):
 
         * Any default value set using the ``default`` flag.
 
-    There are subclasses of ``Parameter`` that define what type the parameter has. This is not
-    enforced within Python, but are used for command line interaction.
-
     Parameter objects may be reused, but you must then set the ``positional=False`` flag.
     """
     _counter = 0  # non-atomically increasing counter used for ordering parameters.