diff --git a/tasks/RebuildStaticCacheTask.php b/tasks/RebuildStaticCacheTask.php
index 486ac729..99c044d0 100644
--- a/tasks/RebuildStaticCacheTask.php
+++ b/tasks/RebuildStaticCacheTask.php
@@ -47,7 +47,7 @@ class RebuildStaticCacheTask extends Controller {
 		$cacheBaseDir = $page->getDestDir();
 		
 		if(!file_exists($cacheBaseDir)) {
-			mkdir($cacheBaseDir);
+			Filesystem::makeFolder($cacheBaseDir);
 		}
 		
 		if (file_exists($cacheBaseDir.'/lock') && !isset($_REQUEST['force'])) die("There already appears to be a publishing queue running. You can skip warning this by adding ?/&force to the URL.");