diff --git a/docker/Dockerfile b/docker/Dockerfile
index 0e737492..c7741624 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,7 +1,8 @@
 FROM frolvlad/alpine-glibc:glibc-2.31
+ENV GOTIFY_SERVER_PORT="80"
 WORKDIR /app
 RUN apk add --no-cache ca-certificates tzdata curl
 ADD gotify-app /app/
-HEALTHCHECK --interval=30s --timeout=5s --start-period=5s CMD curl --fail http://localhost:80/health || exit 1
+HEALTHCHECK --interval=30s --timeout=5s --start-period=5s CMD curl --fail http://localhost:$GOTIFY_SERVER_PORT/health || exit 1
 EXPOSE 80
 ENTRYPOINT ["./gotify-app"]