diff --git a/install_binaries.sh b/install_binaries.sh
index 7f1f374..dda0e7f 100755
--- a/install_binaries.sh
+++ b/install_binaries.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 set -e
 
+export LANG=C.UTF-8
 # install all required packages
 DEBIAN_FRONTEND=noninteractive apt-get update
 DEBIAN_FRONTEND=noninteractive apt-get --no-install-recommends install -y apt-transport-tor bash-completion bind9 brotli bzip2 ca-certificates clamav-daemon clamav-freshclam curl dovecot-imapd dovecot-lmtpd dovecot-pop3d git hardlink haveged iptables libio-socket-ip-perl libsasl2-modules locales locales-all logrotate lsb-release mariadb-server nano postfix postfix-mysql quota quotatool razor redis rsync ssh subversion tor unzip vim wget xz-utils zip zopfli