diff --git a/Dockerfile b/Dockerfile
index b30fb81..7aeef1d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,5 +26,7 @@ RUN cd /usr/src/app && npm install --production
 VOLUME /data
 WORKDIR /data
 
+ENV NODE_ENV="production"
+
 EXPOSE 80
 ENTRYPOINT ["/usr/src/app/run.sh"]
diff --git a/Dockerfile_light b/Dockerfile_light
index 79898d6..9f1f18d 100644
--- a/Dockerfile_light
+++ b/Dockerfile_light
@@ -8,5 +8,7 @@ RUN cd /usr/src/app && npm install --production
 VOLUME /data
 WORKDIR /data
 
+ENV NODE_ENV="production"
+
 EXPOSE 80
 ENTRYPOINT ["node", "/usr/src/app/", "-p", "80"]