diff --git a/lib/filelib.php b/lib/filelib.php
index 0330a4b6aea..870bbaa08a7 100644
--- a/lib/filelib.php
+++ b/lib/filelib.php
@@ -4032,7 +4032,7 @@ function file_pluginfile($relativepath, $forcedownload, $preview = null, $offlin
         $filename = array_pop($args);
 
         if ($filearea === 'badgeimage') {
-            if ($filename !== 'f1' && $filename !== 'f2') {
+            if ($filename !== 'f1' && $filename !== 'f2' && $filename !== 'f3') {
                 send_file_not_found();
             }
             if (!$file = $fs->get_file($context->id, 'badges', 'badgeimage', $badge->id, '/', $filename.'.png')) {