diff --git a/lib/classes/module/console/systemClearCache.php b/lib/classes/module/console/systemClearCache.php
index 9624294d8e..8cdc4a19f1 100644
--- a/lib/classes/module/console/systemClearCache.php
+++ b/lib/classes/module/console/systemClearCache.php
@@ -31,7 +31,7 @@ class module_console_systemClearCache extends Command
     {
         $finder = new Finder();
 
-        $in = $this->container['cache.paths']->toArray();
+        $in = $this->container['cache.paths']->getArrayCopy();
         $finder
             ->exclude('.git')
             ->exclude('.svn')