diff --git a/Dockerfile b/Dockerfile
index 78429488a..dfeb4a0d7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,6 +24,7 @@ COPY server-package.json package.json
 # Copy TypeScript build artifacts into the original directory structure.
 RUN ls
 RUN cp -R build/src/* src/.
+RUN rm -r build
 
 # Install app dependencies
 RUN set -x \