diff --git a/README.md b/README.md
index 1da41ca..ebace1d 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 The idea is to provide tt-rss working (and updating) out of the box with minimal fuss.
 
-**This compose setup uses prebuilt images from Docker Hub.**
+**This setup uses official prebuilt images from Docker Hub. Note that images are only available for Linux/amd64.**
 
 - [TODO](https://git.tt-rss.org/fox/ttrss-docker-compose/wiki/TODO)
 - [FAQ](https://git.tt-rss.org/fox/ttrss-docker-compose/wiki#faq)