diff --git a/includes/lib/transifex-live-integration-prerender.php b/includes/lib/transifex-live-integration-prerender.php
index c21afb2e..a0ebf5e0 100644
--- a/includes/lib/transifex-live-integration-prerender.php
+++ b/includes/lib/transifex-live-integration-prerender.php
@@ -166,9 +166,11 @@ function callback( $buffer ) {
 		$lang = urlencode($_SERVER['HTTP_X_TRANSIFEX_LANG']);
 
 		$debug_html = '<!--' . "\n";
+		$debug_html .= 'HTTP_X_TRANSIFEX_LANG: ' . $lang . "\n";
 		$page_url = home_url( $wp->request );
 		if ( !empty($lang) ) {
 			$page_url = Transifex_Live_Integration_Util::replace_lang_subdomain($page_url, $lang);
+			header('X-Transifex-Lang: ' . $lang);
 		}
 		$page_url = rtrim( $page_url, '/' ) . '/';
 		if ( function_exists( 'curl_version' ) ) {