diff --git a/Lib/sched.py b/Lib/sched.py
index aecdb2a..f0da829 100644
--- a/Lib/sched.py
+++ b/Lib/sched.py
@@ -67,7 +67,7 @@
         """Remove an event from the queue.
 
         This must be presented the ID as returned by enter().
-        If the event is not in the queue, this raises RuntimeError.
+        If the event is not in the queue, this raises ValueError.
 
         """
         self._queue.remove(event)