diff --git a/Dockerfile b/Dockerfile
index 5bfeca4f..fe1459a2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,6 +8,7 @@ FROM node:alpine as adminBuild
 
 WORKDIR /opt/etherpad-lite
 COPY ./admin ./admin
+COPY ./src/locales ./src/locales
 RUN cd ./admin && npm install -g pnpm && pnpm install && pnpm run build --outDir ./dist