diff --git a/hosts/x86_64-linux/beleth/default.nix b/hosts/x86_64-linux/beleth/default.nix
index 6cbded9..81a9cc3 100644
--- a/hosts/x86_64-linux/beleth/default.nix
+++ b/hosts/x86_64-linux/beleth/default.nix
@@ -34,6 +34,7 @@ with lib; {
                  }
                  syncthing.heroin.trade {
             reverse_proxy http://localhost:8384 {
+	    	header_up Host {upstream_hostport}
             }
                  }
                  demos.heroin.trade {