diff --git a/src/apps.js b/src/apps.js
index d5865a96b..de0ada030 100644
--- a/src/apps.js
+++ b/src/apps.js
@@ -478,7 +478,7 @@ function configure(appId, location, portBindings, accessRestriction, cert, key,
                 accessRestriction: app.accessRestriction,
                 portBindings: app.portBindings,
                 memoryLimit: app.memoryLimit,
-                altDomain: altDomain
+                altDomain: app.altDomain
             }
         };