diff --git a/docs/en/reference/events.rst b/docs/en/reference/events.rst
index 2762e5fc7..65acd2466 100644
--- a/docs/en/reference/events.rst
+++ b/docs/en/reference/events.rst
@@ -184,6 +184,14 @@ the life-time of their registered entities.
    invoked, after all references to entities have been removed from the unit of
    work. This event is not a lifecycle callback.
 
+.. warning::
+
+    Note that, when using ``Doctrine\ORM\AbstractQuery#iterate()``, ``postLoad``
+    events will be executed immediately after objects are being hydrated, and therefore
+    associations are not guaranteed to be initialized. It is not safe to combine
+    usage of ``Doctrine\ORM\AbstractQuery#iterate()`` and ``postLoad`` event
+    handlers.
+
 .. warning::
 
     Note that the postRemove event or any events triggered after an entity removal