diff --git a/docs/add-ons/configuration.md b/docs/add-ons/configuration.md
index a1e0ece8..f9838e45 100644
--- a/docs/add-ons/configuration.md
+++ b/docs/add-ons/configuration.md
@@ -264,6 +264,7 @@ args:
 | build_from | no | A dictionary with the hardware architecture as the key and the base Docker image as value.
 | squash | no | Default `False`. Be careful with this option, as you can not use the image for caching stuff after that!
 | args | no | Allow to set additional Docker build arguments as a dictionary.
+| labels | no | Allow to set additional Docker labels as a dictionary.
 
 We provide a set of [base images][docker-base] which should cover a lot of needs. If you don't want use the Alpine based version or need a specific image tag, feel free to pin this requirements for you build with `build_from` option.