diff --git a/lib/filelib.php b/lib/filelib.php
index 0e17a8111a6..6b4f1dc8210 100644
--- a/lib/filelib.php
+++ b/lib/filelib.php
@@ -4088,7 +4088,7 @@ 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')) {