builtin -> built-in.
diff --git a/Doc/library/pprint.rst b/Doc/library/pprint.rst
index 7bcb3f1..36a2bc4 100644
--- a/Doc/library/pprint.rst
+++ b/Doc/library/pprint.rst
@@ -13,7 +13,7 @@
If the formatted structures include objects which are not fundamental Python
types, the representation may not be loadable. This may be the case if objects
such as files, sockets, classes, or instances are included, as well as many
-other builtin objects which are not representable as Python constants.
+other built-in objects which are not representable as Python constants.
The formatted representation keeps objects on a single line if it can, and
breaks them onto multiple lines if they don't fit within the allowed width.