diff --git a/source/includes/fact-replica-set-sync-from-is-temporary.rst b/source/includes/fact-replica-set-sync-from-is-temporary.rst
index 923b71fc433..918c9336db2 100644
--- a/source/includes/fact-replica-set-sync-from-is-temporary.rst
+++ b/source/includes/fact-replica-set-sync-from-is-temporary.rst
@@ -6,7 +6,7 @@ temporary override of default behavior. If:
 - the connection to the sync target closes, or 
 
 - the sync target falls more than 30 seconds behind another member of
-  the replica set;
+  the replica set (v2.4 only)
 
 then, the :program:`mongod` instant will revert to the default sync
 logic and target.