diff --git a/Lib/threading.py b/Lib/threading.py
index 668126523d5..62f49c05cdc 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -557,7 +557,7 @@ class Event:
     def isSet(self):
         """Return true if and only if the internal flag is true.
 
-        This method is deprecated, use notify_all() instead.
+        This method is deprecated, use is_set() instead.
 
         """
         import warnings