diff --git a/Filesystem.php b/Filesystem.php
index 2388e95..41a8757 100644
--- a/Filesystem.php
+++ b/Filesystem.php
@@ -21,7 +21,14 @@ public static function copy(string $source, string $target, bool $deleteSource =
             if ($file === '.' || $file === '..') {
                 continue;
             }
-            \Nette\Utils\FileSystem::copy($source . '/' . $file, $target . '/' . $file);
+
+            $sourcePath = $source . '/' . $file;
+            $targetPath = $target . '/' . $file;
+            if (is_dir($sourcePath)) {
+                self::copy($sourcePath, $targetPath, $deleteSource);
+            } else {
+                \Nette\Utils\FileSystem::copy($sourcePath, $targetPath);
+            }
         }
         if ($deleteSource) {
             \Nette\Utils\FileSystem::delete($source);