diff --git a/docker/backend/Dockerfile b/docker/backend/Dockerfile
index e2629549c..b8b437ac3 100644
--- a/docker/backend/Dockerfile
+++ b/docker/backend/Dockerfile
@@ -1,10 +1,5 @@
 FROM docker.io/ubuntu:latest
 
-# debug info
-# RUN lsb_release -a
-# RUN curl -k https://google.de
-RUN env
-# RUN curl -sSLk -x $HTTP_PROXY
 
 RUN apt-get -y update && apt-get -y install inotify-tools
 RUN apt-get -y update && apt-get -y install haskell-stack git