diff --git a/packages/mirage-unikernel-static-website-hvt.0.0.1/opam b/packages/mirage-unikernel-static-website-hvt.0.0.1/opam
index 256243a..5bd0e69 100644
--- a/packages/mirage-unikernel-static-website-hvt.0.0.1/opam
+++ b/packages/mirage-unikernel-static-website-hvt.0.0.1/opam
@@ -35,7 +35,7 @@ authors: "dummy"
 homepage: "dummy"
 bug-reports: "dummy"
 dev-repo: "git+https://example.com/nonexistent"
-build: [ "sh" "-exc" "cd applications/static_website_tls && mirage configure -t hvt && mirage build" ]
+build: [ "sh" "-exc" "cd applications/static_website_tls && mirage configure -t hvt --http 80 --https 443 && mirage build" ]
 synopsis: "A static website example unikernel."
 install: [
   [ "cp" "applications/static_website_tls/https.hvt" "%{bin}%/https.hvt" ]