diff --git a/Dockerfile b/Dockerfile
index 3cad897..d9ba426 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,8 +3,7 @@ FROM jruby:1.7-jdk
 RUN mkdir -p /var/lib/vmpooler
 WORKDIR /var/lib/vmpooler
 
-ADD Gemfile /var/lib/vmpooler
-ADD Gemfile.lock /var/lib/vmpooler
+ADD Gemfile* /var/lib/vmpooler
 RUN bundle install --system
 
 RUN ln -s /opt/jruby/bin/jruby /usr/bin/jruby