diff --git a/arch/Dockerfile b/arch/Dockerfile
index c0c77d2..ef24568 100644
--- a/arch/Dockerfile
+++ b/arch/Dockerfile
@@ -1,6 +1,8 @@
 FROM archlinux/base
 
-RUN echo "[archlinuxfr] \nSigLevel = Never \nServer = http://repo.archlinux.fr/$arch" >> /etc/pacman.conf
+RUN echo "[archlinuxfr]" >> /etc/pacman.conf && \
+	echo "SigLevel = Never" >> /etc/pacman.conf && \
+	echo "Server = http://repo.archlinux.fr/$arch" >> /etc/pacman.conf
 
 RUN pacman -Syuu --noconfirm && pacman -S yaourt ansible sshpass python2-passlib python2-netaddr python2-pywinrm python2-dnspython python2-ovirt-engine-sdk python2-jmespath python2-requests-ntlm python2-requests-kerberos python2-requests-credssp git --noconfirm