diff --git a/data/Dockerfiles/solr/Dockerfile b/data/Dockerfiles/solr/Dockerfile
index 429133519..ecbd6a37a 100644
--- a/data/Dockerfiles/solr/Dockerfile
+++ b/data/Dockerfiles/solr/Dockerfile
@@ -1,4 +1,5 @@
 FROM solr:7.7-slim
+LABEL maintainer "The Infrastructure Company GmbH <info@servercow.de>"
 
 USER root