diff --git a/_webi/serve-installer.js b/_webi/serve-installer.js
index fb6b8bc..ab9a57a 100644
--- a/_webi/serve-installer.js
+++ b/_webi/serve-installer.js
@@ -133,6 +133,9 @@ InstallerServer.helper = async function ({
   };
 
   let hasOs = projInfo.oses.includes(hostTarget.os);
+  if (!hasOs) {
+    hasOs = projInfo.oses.includes('ANYOS');
+  }
   if (!hasOs) {
     let pkg1 = Object.assign(buildTargetInfo, errPackage);
     return [pkg1, tmplParams];