diff --git a/Dockerfile b/Dockerfile
index 17a8cf3b..85d3b15f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM centos
 RUN curl --silent --location https://rpm.nodesource.com/setup_7.x | bash -
 RUN yum install -y git make gcc nodejs ImageMagick && yum clean all
-ADD app /app
+COPY app /app
 WORKDIR /app/
 ENV NODE_ENV production
 RUN npm install --no-progress --production && npm install --no-progress passport-ldapjs