diff --git a/Dockerfile b/Dockerfile
index 36cbe143f2..2b1d1cdde1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,7 +26,7 @@ ARG OPENSHIFT_SHA=4b0f07428ba854174c58d2e38287e5402964c9a9355f6c359d1242efd0990d
 
 COPY . /tmp/src
 RUN /tmp/src/tools/install-js-tools.sh
-# Explicitly run the Javascript build
+# Explicitly run the Javascript build.
 RUN cd /tmp/src \
   && mkdir -p zuul/web/static \
   && ln -sfn ../zuul/web/static web/build \