diff -r 5a9f2de4dc16 Doc/extending/building.rst
--- a/Doc/extending/building.rst	Sun Jan 03 19:37:07 2016 +0530
+++ b/Doc/extending/building.rst	Thu Jan 07 19:22:14 2016 +0530
@@ -81,7 +81,7 @@
 function. This takes a variable number of keyword arguments, of which the
 example above uses only a subset. Specifically, the example specifies
 meta-information to build packages, and it specifies the contents of the
-package.  Normally, a package will contain of addition modules, like Python
+package.  Normally, a package will contain additional modules, like Python
 source modules, documentation, subpackages, etc. Please refer to the distutils
 documentation in :ref:`distutils-index` to learn more about the features of
 distutils; this section explains building extension modules only.