diff --git a/authcache.module b/authcache.module
index 212f8b7..b9a782e 100644
--- a/authcache.module
+++ b/authcache.module
@@ -683,8 +683,8 @@ function authcache_cache_save() {
   $created = REQUEST_TIME;
   module_invoke_all('authcache_cache_save', $body, $headers, $created);
 
-  // Get rid of output buffer.
-  ob_end_clean();
+  // Remove buffer content.
+  ob_clean();
 
   // Construct dummy cache object which is later served using
   // drupal_serve_page_from_cache.