diff --git a/Dockerfile b/Dockerfile
index a39ce882e..7cd8105d9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,11 @@
 FROM node:alpine as build
 LABEL maintainer="Etherpad team, https://github.com/ether/etherpad-lite"
 
+# Set these arguments when building the image from behind a proxy
+ARG http_proxy=
+ARG https_proxy=
+ARG no_proxy=
+
 ARG TIMEZONE=
 
 RUN \