diff --git a/Dockerfile b/Dockerfile
index edfc4dc..cf83835 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -28,6 +28,7 @@ ENV LIPGLOSS_RENDERER_HAS_DARK_BACKGROUND=true
 ENV UPTOP_DB_TYPE=sqlite
 ENV UPTOP_DB_DSN=/data/uptop.db
 ENV UPTOP_KEYS=/data/authorized_keys
+ENV UPTOP_SSH_HOST_KEY=/data/.ssh/id_ed25519
 ENV UPTOP_PORT=23234
 
 EXPOSE 23234