diff --git a/image/Dockerfile b/image/Dockerfile
index d543b36..e1a1fa4 100644
--- a/image/Dockerfile
+++ b/image/Dockerfile
@@ -9,4 +9,8 @@ RUN /bd_build/prepare.sh && \
 	/bd_build/fix_pam_bug.sh && \
 	/bd_build/cleanup.sh
 
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8
+
 CMD ["/sbin/my_init"]