diff --git a/app-backend/src/dockerfiles/ruby b/app-backend/src/dockerfiles/ruby
index 18b79f9..dd560ac 100644
--- a/app-backend/src/dockerfiles/ruby
+++ b/app-backend/src/dockerfiles/ruby
@@ -6,7 +6,7 @@ WORKDIR /usr/src/app
 COPY ./src/Gemfile /usr/src/app/
 RUN bundle install
 COPY ./src /usr/src/app
-
+ENV RACK_ENV production
 EXPOSE 80
 
 CMD ["rackup", "config.ru", "--host", "0.0.0.0", "--port", "80"]