diff --git a/internal/rpc/rpc.go b/internal/rpc/rpc.go
index f1af32ffa5..a2ebae853a 100644
--- a/internal/rpc/rpc.go
+++ b/internal/rpc/rpc.go
@@ -346,3 +346,26 @@ func logLevelForError(err error) log.Level {
 	}
 	return log.Warn
 }
+
+type hostOption struct {
+	host string
+}
+
+func (h hostOption) WrapUnary(unaryFunc connect.UnaryFunc) connect.UnaryFunc {
+	return func(ctx context.Context, request connect.AnyRequest) (connect.AnyResponse, error) {
+		request.Header().Set("Host", h.host)
+		return unaryFunc(ctx, request)
+	}
+}
+
+func (h hostOption) WrapStreamingClient(clientFunc connect.StreamingClientFunc) connect.StreamingClientFunc {
+	return clientFunc
+}
+
+func (h hostOption) WrapStreamingHandler(handlerFunc connect.StreamingHandlerFunc) connect.StreamingHandlerFunc {
+	return handlerFunc
+}
+
+func setHost(host string) connect.ClientOption  {
+	return connect.WithInterceptors(hostOption{host: host})
+}
\ No newline at end of file