diff --git a/controller/action/i18nActions.class.php b/controller/action/i18nActions.class.php
index b8479019..cc20ae3a 100644
--- a/controller/action/i18nActions.class.php
+++ b/controller/action/i18nActions.class.php
@@ -32,7 +32,7 @@ class i18nActions extends Actions
         $json = Transifex::getTranslationResourceFile($project, $resource, $language);
 
         Response::setHeader(Response::HEADER_CROSS_ORIGIN, "*");
-        Response::setHeader(Response::HEADER_ETAG, md5($json));
+        Response::setHeader(Response::HEADER_ETAG, md5(json_encode($json)));
 
         return View::renderJson($json);
     }