diff --git a/deployment/docker/datamate/docker-compose.yml b/deployment/docker/datamate/docker-compose.yml
index 8ee90abc..422f5bd8 100644
--- a/deployment/docker/datamate/docker-compose.yml
+++ b/deployment/docker/datamate/docker-compose.yml
@@ -47,7 +47,6 @@ services:
       - "30000:80"            # nodePort → hostPort
     volumes:
       - frontend_log_volume:/var/log/datamate/frontend
-      - ./backend.conf:/etc/nginx/conf.d/backend.conf
     networks: [ datamate ]
     depends_on:
       - datamate-backend
diff --git a/scripts/images/frontend/Dockerfile b/scripts/images/frontend/Dockerfile
index 80968d01..db19a567 100644
--- a/scripts/images/frontend/Dockerfile
+++ b/scripts/images/frontend/Dockerfile
@@ -10,6 +10,7 @@ RUN if [ -f package-lock.json ]; then npm ci; else npm install; fi && \
 FROM nginx:1.29 AS runner
 
 COPY --from=builder /app/dist /opt/frontend
+COPY deployment/docker/datamate/backend.conf /etc/nginx/conf.d/backend.conf
 
 RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
     && rm -f /etc/nginx/conf.d/default.conf