diff --git a/src/filesystem/root/etc/haproxy/haproxy.cfg b/src/filesystem/root/etc/haproxy/haproxy.cfg
index fcd6a935..9cf24a39 100644
--- a/src/filesystem/root/etc/haproxy/haproxy.cfg
+++ b/src/filesystem/root/etc/haproxy/haproxy.cfg
@@ -28,7 +28,7 @@ frontend public
 
 backend octoprint
         reqrep ^([^\ :]*)\ /(.*)     \1\ /\2
-        reqadd X-Scheme:\ https  if is-ssl
+        http-request add-header X-Scheme https if { ssl_fc }
         server octoprint1 127.0.0.1:5000
 
 backend webcam