diff --git a/requests/sessions.py b/requests/sessions.py
index 27ca18fc..40e4d82b 100644
--- a/requests/sessions.py
+++ b/requests/sessions.py
@@ -212,7 +212,8 @@ class Session(SessionRedirectMixin):
         #: SSL certificate default.
         self.cert = None
 
-        #: Maximum number of redirects to follow.
+        #: Maximum number of redirects allowed. If the request exceeds this
+        #: limit, a :class:`TooManyRedirects` exception is raised.
         self.max_redirects = DEFAULT_REDIRECT_LIMIT
 
         #: Should we trust the environment?