diff --git a/Dockerfile b/Dockerfile
index 8f75db6..ced7e12 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,6 +4,7 @@ COPY package.json .
 RUN npm i
 COPY public public
 COPY src src
+ARG REACT_APP_CAIRO_URL
 RUN npm run build:react
 COPY server server
 CMD ["npm", "start"]