diff --git a/Dockerfile b/Dockerfile
index e0e134b..c3b1c24 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,8 @@ LABEL Maintainer = "Jonathan Ervine <docker@ervine.org>"
 
 WORKDIR /root/
 
-RUN apk --update --no-cache add git cmake make gcc gcc-c++
+RUN apk --update --no-cache \
+    apk add git cmake make gcc gcc-c++
 
 RUN git clone https://github.com/wez/atomicparsley atomic \
     cd atomic \