diff --git a/Lib/sched.py b/Lib/sched.py
index f0da829..47646a1 100644
--- a/Lib/sched.py
+++ b/Lib/sched.py
@@ -88,7 +88,7 @@
         restarted.
 
         It is legal for both the delay function and the action
-        function to to modify the queue or to raise an exception;
+        function to modify the queue or to raise an exception;
         exceptions are not caught but the scheduler's state remains
         well-defined so run() may be called again.