diff --git a/nur_src/shutils.php b/nur_src/shutils.php
index 95b1be7..768f00e 100644
--- a/nur_src/shutils.php
+++ b/nur_src/shutils.php
@@ -6,7 +6,9 @@ namespace nur;
  */
 class shutils {
   static function ls_all(string $dir, ?string $pattern=null, int $sorting_order=SCANDIR_SORT_ASCENDING): array {
-    return array_filter(scandir($dir, $sorting_order),
+    $all = scandir($dir, $sorting_order);
+    if ($all === false) return [];
+    return array_filter($all,
       function ($file) use ($pattern) {
         if ($file === "." || $file === "..") return false;
         return $pattern === null || fnmatch($pattern, $file);