diff --git a/backup/converter/moodle1/lib.php b/backup/converter/moodle1/lib.php
index 3b3fd4af61e..da6a4ec9ab1 100644
--- a/backup/converter/moodle1/lib.php
+++ b/backup/converter/moodle1/lib.php
@@ -1274,6 +1274,11 @@ class moodle1_file_manager implements loggable {
      */
     public function migrate_directory($rootpath, $relpath='/') {
 
+        // Check the trailing slash in the $rootpath
+        if (substr($rootpath, -1) === '/') {
+            $rootpath = substr($rootpath, 0, strlen($rootpath) - 1);
+        }
+
         if (!file_exists($this->basepath.'/'.$rootpath.$relpath)) {
             return array();
         }