diff --git a/documentation/overview-manual/concepts.rst b/documentation/overview-manual/concepts.rst
index 76ace6fcf..a3893b52d 100644
--- a/documentation/overview-manual/concepts.rst
+++ b/documentation/overview-manual/concepts.rst
@@ -393,6 +393,13 @@ BitBake uses the ``conf/bblayers.conf`` file, which is part of the user
 configuration, to find what layers it should be using as part of the
 build.

+.. warning::
+
+   Even if your build doesn't need some of the layers listed in your
+   ``bblayers.conf`` file, the very inclusion of such layers might
+   affect your build based on the concept of *dynamic layers* as documented
+   by the :term:`BBFILES_DYNAMIC` variable.
+
 Distro Layer
 ~~~~~~~~~~~~