diff --git a/docker/Dockerfile.fluke b/docker/Dockerfile.fluke
index 73a2307..1605e0a 100644
--- a/docker/Dockerfile.fluke
+++ b/docker/Dockerfile.fluke
@@ -53,7 +53,7 @@ RUN set -ex \
 		tar \
 		yaml-dev \
 		zlib-dev \
-		xz \
+		xz
 
 RUN wget -O ruby.tar.xz "https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.1.tar.xz" \
 # 	&& echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum -c - \