diff --git a/docs/source/events/form-submission.rst b/docs/source/events/form-submission.rst
index c452189..9bfd69a 100644
--- a/docs/source/events/form-submission.rst
+++ b/docs/source/events/form-submission.rst
@@ -40,9 +40,14 @@ For 1.x this also provides (deprecated):
 - ``source_tags``
 - ``type_title``
 
+
 .. versionchanged:: 1.3.0
     Added the ``id`` property.
 
+
+.. warning::
+    In Impact Stack 2 the internal ``title`` is passed here. It should not be exposed to supporters.
+
 Links
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