diff --git a/src/routes/apps.js b/src/routes/apps.js
index b7ae34f6d..ac0a178f2 100644
--- a/src/routes/apps.js
+++ b/src/routes/apps.js
@@ -49,7 +49,8 @@ function removeInternalAppFields(app) {
         portBindings: app.portBindings,
         iconUrl: app.iconUrl,
         fqdn: app.fqdn,
-        memoryLimit: app.memoryLimit
+        memoryLimit: app.memoryLimit,
+        altDomain: app.altDomain
     };
 }