diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index 61d6e4b..0b42460 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -16,6 +16,8 @@ COPY . .
 # Set environment for build to ensure server binds to all interfaces
 ENV HOSTNAME="0.0.0.0"
 ENV PORT="3000"
+# Set API_INTERNAL_URL for build-time Next.js rewrites evaluation
+ENV API_INTERNAL_URL="http://workclub-api:8080"
 RUN bun run build
 
 # Stage 3: Runtime