diff --git a/Dockerfile b/Dockerfile
index 83f15df..e758f19 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,8 +5,8 @@ RUN apt-get update
 RUN apt-get install -y librsvg2-bin
 
 # enable postfix to be able to send mails
-CMD ["/opt/docker/bin/usr-bin/docker-service-enable", "postfix"]
-CMD ["mkfifo", "/var/spool/postfix/public/pickup"]
+RUN /opt/docker/bin/usr-bin/docker-service-enable postfix
+RUN mkfifo /var/spool/postfix/public/pickup
 RUN service postfix restart
 
 #restart apache