diff --git a/session.rst b/session.rst
index aa40cbb20e0..cd9fb1f07a4 100644
--- a/session.rst
+++ b/session.rst
@@ -1129,9 +1129,6 @@ These are parameters that you can configure:
 ``expiry_field`` (default ``expires_at``):
     The name of the field where to store the session lifetime.
 
-.. index::
-    single: Sessions, saving locale
-
 Migrating Between Session Handlers
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~