diff --git a/Doc/library/selectors.rst b/Doc/library/selectors.rst
index 1624d88..6d864a8 100644
--- a/Doc/library/selectors.rst
+++ b/Doc/library/selectors.rst
@@ -68,7 +68,7 @@
 .. class:: SelectorKey
 
    A :class:`SelectorKey` is a :class:`~collections.namedtuple` used to
-   associate a file object to its underlying file decriptor, selected event
+   associate a file object to its underlying file descriptor, selected event
    mask and attached data. It is returned by several :class:`BaseSelector`
    methods.