diff --git a/contrib/dokku-installer.py b/contrib/dokku-installer.py
index ab7a2db9539..716b76424c2 100755
--- a/contrib/dokku-installer.py
+++ b/contrib/dokku-installer.py
@@ -95,6 +95,9 @@ def do_POST(self):
                 os.remove('{0}/VHOST'.format(dokku_root))
             except OSError:
                 pass
+        with open('{0}/HOSTNAME'.format(dokku_root), 'w') as f:
+            f.write(params['hostname'].value)
+
 
         command = ['sshcommand', 'acl-add', 'dokku', 'admin']
         for key in params['keys'].value.split("\n"):