diff --git a/Makefile b/Makefile
index cefd1a6..214a6e1 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ install:
 	. thsf_venv/bin/activate; \
 	pip install -r requirements.txt ;\
 	pip install . ;\
-	pip install gunicorn; \
+	pip install gunicorn;
 
 run:
 	set -e ;\
diff --git a/docker-compose.yml b/docker-compose.yml
index 516474c..18c57c4 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,7 +4,9 @@ services:
     build:
       dockerfile: thsf.Dockerfile
       context: .
+      extra_hosts:
+        - "23.thsf.net:192.168.122.26"
     ports:
-      - "127.0.0.1:8042:8042"
+      - "0.0.0.0:8042:8042"
     image: thsf:latest
     container_name: thsf
diff --git a/thsf.Dockerfile b/thsf.Dockerfile
index 4b41b31..2bcf58e 100644
--- a/thsf.Dockerfile
+++ b/thsf.Dockerfile
@@ -1,3 +1,4 @@
+ARG PRETALX_HOSTS_ENTRY
 FROM python:3.9.16-bullseye as thsf_base
 RUN apt-get update -y && \
     apt-get install -y bash make python3-pip && \