Remove Sphinx markup

1 files changed, 1 insertions, 1 deletions

diff --git a/README.rst b/README.rst
index 85b3596..ef6358c 100644
--- a/README.rst
+++ b/README.rst
@@ -30,7 +30,7 @@ In general, a cache's size is the sum of the size of its items.  If
 the size of each items is ``1``, a cache's size is equal to the number
 of its items, i.e. ``len()``.  An items's size may also be a property
 or function of its value, e.g. the result of ``sys.getsizeof()``, or
-``len`` for string and sequence values.
+``len()`` for string and sequence values.
 
 This module provides various cache implementations based on different
 cache algorithms, as well as decorators for easily memoizing function