diff --git a/README.md b/README.md
index 0ebe974..d24f149 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # Matrix Synapse
 
-Matrix Synapse, based on official `martixdotorg/synapse` image.
+Matrix Synapse, based on the [official `matrixdotorg/synapse`
+image][synapse-docker].
 
 1. Set up Docker Swarm and [`abra`][abra]
 2. Deploy [`compose-stacks/traefik`][compose-traefik]
@@ -12,5 +13,6 @@ Matrix Synapse, based on official `martixdotorg/synapse` image.
 6. `abra service_run synapse` to open a shell
 7. `register_new_matrix_user -c /data/homeserver.yaml http://localhost:8008`
 
+[synapse-docker]: https://hub.docker.com/r/matrixdotorg/synapse
 [abra]: https://git.autonomic.zone/autonomic-cooperative/abra
 [compose-traefik]: https://git.autonomic.zone/compose-stacks/traefik