diff --git a/install_yunohost b/install_yunohost
index 7d60371..4b87f81 100755
--- a/install_yunohost
+++ b/install_yunohost
@@ -90,6 +90,7 @@ function main()
     step install_script_dependencies   || die "Unable to install dependencies to install script"
     step create_custom_config          || die "Creating custom configuration file /etc/yunohost/yunohost.conf failed"
     step confirm_installation          || die "Installation cancelled at your request"
+    step fix_locales                   # do not die for a failure here, it's minor
     step setup_package_source          || die "Setting up deb package sources failed"
     step apt_update                    || die "Error caught during 'apt-get update'"
     step register_debconf              || die "Unable to insert new values into debconf database"
@@ -402,6 +403,12 @@ function restart_services() {
     return 0
 }
 
+function fix_locales() {
+    [ "$(grep LC_ALL /etc/environment)" ] || echo 'LC_ALL="en_US.UTF-8"' >> /etc/environment
+    source /etc/environment
+    export LC_ALL
+}
+
 function post_install() {
     # No postinstall in auto mode
     [[ "$AUTOMODE" == "1" ]] && return 0