diff --git a/Dockerfile b/Dockerfile
index 1f6c641..45107bf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,4 +18,5 @@ RUN echo '{"locations":{"database":"/data/widerhall.sqlite3","configuration":"/d
 # get JQUERY
 RUN wget https://code.jquery.com/jquery-3.6.0.min.js -O static/jquery-3.6.0.min.js
 
-CMD java -jar widerhall.jar
\ No newline at end of file
+EXPOSE 80
+CMD java -jar widerhall.jar