diff --git a/import-layers/meta-raspberrypi/conf/layer.conf b/import-layers/meta-raspberrypi/conf/layer.conf
index bea5a65..bbdce14 100644
--- a/import-layers/meta-raspberrypi/conf/layer.conf
+++ b/import-layers/meta-raspberrypi/conf/layer.conf
@@ -12,3 +12,12 @@
 # Additional license directories.
 LICENSE_PATH += "${LAYERDIR}/files/custom-licenses"
 
+# The dynamic-layers directory hosts the extensions and layer specific
+# modifications.
+#
+# The .bbappend and .bb files are included if the respective layer
+# collection is available.
+BBFILES += "${@' '.join('${LAYERDIR}/dynamic-layers/%s/recipes*/*/*.bbappend' % layer \
+               for layer in BBFILE_COLLECTIONS.split())}"
+BBFILES += "${@' '.join('${LAYERDIR}/dynamic-layers/%s/recipes*/*/*.bb' % layer \
+               for layer in BBFILE_COLLECTIONS.split())}"