Typo fix
diff --git a/Doc/library/sched.rst b/Doc/library/sched.rst
index 95ec499..420ae20 100644
--- a/Doc/library/sched.rst
+++ b/Doc/library/sched.rst
@@ -43,7 +43,7 @@
In multi-threaded environments, the :class:`scheduler` class has limitations
with respect to thread-safety, inability to insert a new task before
-the one currently pending in a running scheduler, and holding-up the main
+the one currently pending in a running scheduler, and holding up the main
thread until the event queue is empty. Instead, the preferred approach
is to use the :class:`threading.Timer` class instead.