diff --git a/roles/lemonldap_ng/templates/llng_headers.inc.j2 b/roles/lemonldap_ng/templates/llng_headers.inc.j2
index cffa093..581954c 100644
--- a/roles/lemonldap_ng/templates/llng_headers.inc.j2
+++ b/roles/lemonldap_ng/templates/llng_headers.inc.j2
@@ -47,7 +47,9 @@ auth_request_set $lmcookie $upstream_http_cookie;
 auth_request_set $internal_lemonldap_logout_url $upstream_http_internal_lemonldap_logout_url;
 access_by_lua '
   local i = 1
-  ngx.req.set_header("Cookie",ngx.var.lmcookie)
+  local cookie = ngx.var.lmcookie
+  cookie = cookie:gsub(", ", "; ")
+  ngx.req.set_header("Cookie",cookie)
   while true do
     if ngx.var["headername"..i] ~= nil then
       ngx.req.set_header(ngx.var["headername"..i],ngx.var["headervalue"..i])