diff --git a/index.php b/index.php
index ab9c165..905f28d 100644
--- a/index.php
+++ b/index.php
@@ -37,9 +37,11 @@ if (isset($_SESSION['files'])
   $files = $_SESSION['files'];
 } else {
   $tmpdirs = glob(Helpers::end_dir($imagedir.$dir).'*' , GLOB_ONLYDIR);
-  foreach ($tmpdirs as $tmpdir)
-    $dirs[] = basename($tmpdir);
-  $rmdirs = $dirs;
+  if (!empty($tmpdirs)) {
+    foreach ($tmpdirs as $tmpdir)
+      $dirs[] = basename($tmpdir);
+    $rmdirs = $dirs;
+  }
   $rmdirs[] = '.';
   $rmdirs[] = '..';
   $files = array_diff(scandir($imagedir.$dir, SCANDIR_SORT_DESCENDING), $rmdirs);