diff --git a/packages/backend/Dockerfile b/packages/backend/Dockerfile
index 3e8ba36cec..8d17821101 100644
--- a/packages/backend/Dockerfile
+++ b/packages/backend/Dockerfile
@@ -2,6 +2,8 @@ FROM node:12
 
 WORKDIR /usr/src/app
 
+# This will copy the contents of the dist-workspace when running the build-image command.
+# Do not use this Dockerfile outside of that command, as it will copy in the source code instead.
 COPY . .
 
 RUN yarn install --frozen-lockfile --production