diff --git a/nginx.conf.template b/nginx.conf.template
index 19a26b1..d27a2c3 100644
--- a/nginx.conf.template
+++ b/nginx.conf.template
@@ -30,7 +30,7 @@ server {
 
     location @error401 {
         # redirect to Vouch Proxy for login
-        return 302 https://@VOUCH_EXTERNAL@/login?url=$scheme://$http_host$request_uri&vouch-failcount=$auth_resp_failcount&X-Vouch-Token=$auth_resp_jwt&error=$auth_resp_err;
+        return 302 https://@VOUCH_EXTERNAL@/login?url=https://$http_host$request_uri&vouch-failcount=$auth_resp_failcount&X-Vouch-Token=$auth_resp_jwt&error=$auth_resp_err;
     }
 
     location / {