diff --git a/Dockerfile b/Dockerfile
index 8e92352..bd1c218 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,6 +19,10 @@ RUN npm ci --prefer-offline
 COPY eeg_frontend/openapi.yaml ./
 RUN npx openapi-generator-cli generate -i ./openapi.yaml -g typescript-angular -o ./src/app/api
 
+ARG VITE_OR_ANGULAR_BACKEND_URL
+ENV BACKEND_URL=$VITE_OR_ANGULAR_BACKEND_URL
+RUN sed -i "s|https://API_URL_PLACEHOLDER|${BACKEND_URL}|g" src/environments/environment.staging.ts
+
 COPY eeg_frontend/ ./
 RUN npm run build -- --configuration staging
 
diff --git a/eeg_frontend/src/environments/environment.staging.ts b/eeg_frontend/src/environments/environment.staging.ts
index 01a4e5a..a864a08 100644
--- a/eeg_frontend/src/environments/environment.staging.ts
+++ b/eeg_frontend/src/environments/environment.staging.ts
@@ -1,4 +1,4 @@
 export const environment = {
-  production: false,
-  apiUrl: 'https://preview.coolify.mueller-dev.com'
+  production: true,
+  apiUrl: 'https://API_URL_PLACEHOLDER'
 };