diff --git a/Dockerfile b/Dockerfile
index 817d04e..a22ddda 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,7 +15,7 @@ RUN apt-get update && \
 # RUN pam-auth-update --enable mkhomedir
 
 
-ENV LANG=fr_FR.UTF-8
+ENV LANG=C
 ENV LDAP_URI="ldap://192.168.0.29"
 ENV LDAP_DOMAIN="coissac.eu"
 ENV LDAP_SEARCH_BASE="ou=people,dc=coissac,dc=eu"