diff --git a/Dockerfile b/Dockerfile
index 8d17cd5..f9896bc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -63,9 +63,10 @@ ENV UMASK=022
 ENV DOWNLOAD_DIR=/downloads
 ENV STATE_DIR=/downloads/.metube
 ENV TEMP_DIR=/downloads
+ENV PORT=8081
 VOLUME /downloads
 EXPOSE 8081
-HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 CMD curl -fsS "http://localhost:8081/" || exit 1
+HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 CMD curl -fsS "http://localhost:${PORT}/" || exit 1
 
 # Add build-time argument for version
 ARG VERSION=dev