diff --git a/Dockerfile b/Dockerfile
index 5b8dc07..90e7fcf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,7 @@
 FROM alpine
 
+MAINTAINER Hanjo Meinhardt <hanjo@bunix.de>
+
 RUN apk add -U --no-cache curl
 
 COPY renew-dns.sh /etc/periodic/15min/renew-dns.sh