diff --git a/docker/Dockerfile b/docker/Dockerfile
index eb4340094..0bf6a7f28 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -14,7 +14,7 @@ LABEL maintainer="Etherpad team, https://github.com/ether/etherpad-lite"
 ARG ETHERPAD_VERSION=develop
 
 # Set the following to production to avoid installing devDeps
-# this can be one with build args (and is mandatory to build ARM version
+# this can be done with build args (and is mandatory to build ARM version)
 ARG NODE_ENV=development
 
 # grab the ETHERPAD_VERSION tarball from github (no need to clone the whole