diff --git a/Utils/IO/Zip/Zip.php b/Utils/IO/Zip/Zip.php
index 6e9c04e55..6e411b287 100644
--- a/Utils/IO/Zip/Zip.php
+++ b/Utils/IO/Zip/Zip.php
@@ -101,7 +101,7 @@ class Zip implements ArchiveInterface
      */
     public static function unpack(string $source, string $destination) : bool
     {
-        if (!\is_file($source) || \is_dir($destination)) {
+        if (!\is_file($source) || !\is_dir($destination)) {
             return false;
         }