diff --git a/php/Modules/Album.php b/php/Modules/Album.php
index ebfe111..fa38eb0 100644
--- a/php/Modules/Album.php
+++ b/php/Modules/Album.php
@@ -2,6 +2,8 @@
 
 namespace Lychee\Modules;
 
+use ZipArchive;
+
 final class Album {
 
 	private $albumIDs = null;
diff --git a/php/Modules/Photo.php b/php/Modules/Photo.php
index 039fe79..c677007 100755
--- a/php/Modules/Photo.php
+++ b/php/Modules/Photo.php
@@ -2,6 +2,8 @@
 
 namespace Lychee\Modules;
 
+use ZipArchive;
+
 final class Photo {
 
 	private $photoIDs = null;