diff --git a/Dockerfile b/Dockerfile
index dc714d4..14802f8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,11 +19,11 @@ 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
 
+COPY eeg_frontend/ ./
 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" eeg_frontend/src/environments/environment.staging.ts
+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
 
 # ---- Stage 2: Build Spring Boot Backend ----