Undo an accidental commit in r87812.
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
index b671c6c..2396622 100644
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -7,7 +7,7 @@
.. index:: expression, BNF
- This chapter explains the meaning of the elements of expressions in Python.
+This chapter explains the meaning of the elements of expressions in Python.
**Syntax Notes:** In this and the following chapters, extended BNF notation will
be used to describe syntax, not lexical analysis. When (one alternative of) a