diff --git a/includes/bootstrap.inc b/includes/bootstrap.inc
index 93322de..786899b 100644
--- a/includes/bootstrap.inc
+++ b/includes/bootstrap.inc
@@ -2312,7 +2312,6 @@ function _drupal_bootstrap_page_cache() {
     $cache = drupal_page_get_cache();
     // If there is a cached page, display it.
     if (is_object($cache)) {
-      header('X-Drupal-Cache: HIT');
       // Restore the metadata cached with the page.
       $_GET['q'] = $cache->data['path'];
       drupal_set_title($cache->data['title'], PASS_THROUGH);
@@ -2322,6 +2321,11 @@ function _drupal_bootstrap_page_cache() {
       if (variable_get('page_cache_invoke_hooks', TRUE)) {
         bootstrap_invoke_all('boot');
       }
+      if (!variable_get('cache')) {
+        header('X-Drupal-Cache: SKIP');
+        return;
+      }
+      header('X-Drupal-Cache: HIT');
       drupal_serve_page_from_cache($cache);
       // If the skipping of the bootstrap hooks is not enforced, call
       // hook_exit.