diff --git a/Dockerfile b/Dockerfile
index dccf119..3564789 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,8 @@ FROM alpine:3.9
 LABEL maintainer="Sebastian Hugentobler <sebastian@vanwa.ch>"
 
 ENV S6_OVERLAY_VERSION=v1.21.8.0
-
+ENV LANG=en_US.UTF-8
+    
 RUN apk --no-cache add libressl syslog-ng
 RUN wget -qO- https://github.com/just-containers/s6-overlay/releases/download/$S6_OVERLAY_VERSION/s6-overlay-amd64.tar.gz | tar -xz -C /