diff --git a/lib/filelib.php b/lib/filelib.php
index e3b4a22e539..ee4db2f76da 100644
--- a/lib/filelib.php
+++ b/lib/filelib.php
@@ -3187,6 +3187,10 @@ function file_pluginfile($relativepath, $forcedownload) {
             print_error('siteblogdisable', 'blog');
         }
 
+        $entryid = (int)array_shift($args);
+        if (!$entry = $DB->get_record('post', array('module'=>'blog', 'id'=>$entryid))) {
+            send_file_not_found();
+        }
         if ($CFG->bloglevel < BLOG_GLOBAL_LEVEL) {
             require_login();
             if (isguestuser()) {
@@ -3198,10 +3202,6 @@ function file_pluginfile($relativepath, $forcedownload) {
                 }
             }
         }
-        $entryid = (int)array_shift($args);
-        if (!$entry = $DB->get_record('post', array('module'=>'blog', 'id'=>$entryid))) {
-            send_file_not_found();
-        }
 
         if ('publishstate' === 'public') {
             if ($CFG->forcelogin) {