diff --git a/tinc-homeassistant/Dockerfile b/tinc-homeassistant/Dockerfile
index ebe9175..dbebe0c 100644
--- a/tinc-homeassistant/Dockerfile
+++ b/tinc-homeassistant/Dockerfile
@@ -2,7 +2,7 @@ ARG BUILD_FROM
 FROM $BUILD_FROM
 
 
-RUN /bin/sh -c set -xe && apk add -U tinc && rm -rf /var/cache/apk/*
+RUN /bin/sh -c set -xe && apk add -U tinc coreutils && rm -rf /var/cache/apk/*
 
 EXPOSE 655/tcp 655/udp