diff --git a/Lib/logging/__init__.py b/Lib/logging/__init__.py
index 25acb3ffbef..3b2b9bf3b62 100644
--- a/Lib/logging/__init__.py
+++ b/Lib/logging/__init__.py
@@ -789,7 +789,7 @@ def release(self):
 
     def setLevel(self, level):
         """
-        Set the logging level of this handler.
+        Set the logging level of this handler.  level must be an int or a str.
         """
         self.level = _checkLevel(level)
 
@@ -1194,7 +1194,7 @@ def __init__(self, name, level=NOTSET):
 
     def setLevel(self, level):
         """
-        Set the logging level of this logger.
+        Set the logging level of this logger.  level must be an int or a str.
         """
         self.level = _checkLevel(level)