diff --git a/pep-3119.txt b/pep-3119.txt
index 780703d68..1c99d2445 100644
--- a/pep-3119.txt
+++ b/pep-3119.txt
@@ -246,7 +246,7 @@ it has two prescribed methods.
 
 ``Container``
     The base class for classes defining ``__contains__``.  The
-    ``__contains__` method should return a ``bool``.` The abstract
+    ``__contains__`` method should return a ``bool``. The abstract
     ``__contains__`` method returns ``False``.  **Invariant:** If a
     class ``C`` derives from ``Container`` as well as from
     ``Iterable``, then ``(x in o for x in o)`` should be a generator