diff --git a/Dockerfile b/Dockerfile
index 32b089a93..1018d7de0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -49,12 +49,8 @@ RUN apt-get update \
 RUN cpanm install Mojo::Base Statistics::R::IO::Rserve Date::Format Future::AsyncAwait Crypt::JWT IO::Socket::SSL CGI::Cookie \
     && rm -fr ./cpanm /root/.cpanm /tmp/*
 
-ENV MOJO_MODE=production
-
 COPY . .
 
-RUN cp render_app.conf.dist render_app.conf
-
 RUN cd lib/WeBWorK/htdocs && npm install && cd ../../..
 
 EXPOSE 3000