diff --git a/documentation/envers/src/main/docbook/en-US/content/revisionlog.xml b/documentation/envers/src/main/docbook/en-US/content/revisionlog.xml
index d90b27219b..9a8c06aaa9 100644
--- a/documentation/envers/src/main/docbook/en-US/content/revisionlog.xml
+++ b/documentation/envers/src/main/docbook/en-US/content/revisionlog.xml
@@ -39,6 +39,10 @@
         audited entity is modified). As revisions are global, you can have at most one revisions entity.
     </para>
 
+    <para>
+        Please note that the revision entity must be a mapped Hibernate entity.
+    </para>
+
     <para>
         This entity must have at least two properties:
     </para>