builtin -> built-in.
diff --git a/Doc/library/_winreg.rst b/Doc/library/_winreg.rst
index 7876f85..c003fe2 100644
--- a/Doc/library/_winreg.rst
+++ b/Doc/library/_winreg.rst
@@ -408,7 +408,7 @@
The object also support comparison semantics, so handle objects will compare
true if they both reference the same underlying Windows handle value.
-Handle objects can be converted to an integer (e.g., using the builtin
+Handle objects can be converted to an integer (e.g., using the built-in
:func:`int` function), in which case the underlying Windows handle value is
returned. You can also use the :meth:`Detach` method to return the integer
handle, and also disconnect the Windows handle from the handle object.