builtin -> built-in.
diff --git a/Doc/library/zipimport.rst b/Doc/library/zipimport.rst
index d659efe..791aba4 100644
--- a/Doc/library/zipimport.rst
+++ b/Doc/library/zipimport.rst
@@ -12,7 +12,7 @@
This module adds the ability to import Python modules (:file:`\*.py`,
:file:`\*.py[co]`) and packages from ZIP-format archives. It is usually not
needed to use the :mod:`zipimport` module explicitly; it is automatically used
-by the builtin :keyword:`import` mechanism for ``sys.path`` items that are paths
+by the built-in :keyword:`import` mechanism for ``sys.path`` items that are paths
to ZIP archives.
Typically, ``sys.path`` is a list of directory names as strings. This module