diff --git a/source/reference/limitations.txt b/source/reference/limitations.txt
index 2e0b3ae93..a50a11233 100644
--- a/source/reference/limitations.txt
+++ b/source/reference/limitations.txt
@@ -54,6 +54,8 @@ General Limitations
 - .. include:: /includes/fact-applyOps.rst
 - ``mongosync`` must read from the source cluster using the 
   :readmode:`primary` read preference.
+- ``mongosync`` does not support syncing 
+  `Atlas Search Indexes <https://www.mongodb.com/docs/atlas/atlas-search/create-index/>`__.
 
 
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