diff --git a/upsmon/Dockerfile b/upsmon/Dockerfile
index 718ad55..7379b19 100644
--- a/upsmon/Dockerfile
+++ b/upsmon/Dockerfile
@@ -3,10 +3,9 @@ FROM $BUILD_FROM
 
 ENV LANG C.UTF-8
 
-RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/main
-http://dl-cdn.alpinelinux.org/alpine/edge/community
-http://dl-cdn.alpinelinux.org/alpine/edge/testing
-" > /etc/apk/repositories
+RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/main" > /etc/apk/repositories
+RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories
+RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
 RUN apk add -U jq nut curl
 
 RUN mkdir /var/run/nut