diff --git a/modules/sievefilters/modules.php b/modules/sievefilters/modules.php
index 5c0d281c5..8949e994d 100644
--- a/modules/sievefilters/modules.php
+++ b/modules/sievefilters/modules.php
@@ -937,7 +937,7 @@ public function process() {
             }
             if ($action->action == 'move') {
                 $custom_condition->addAction(
-                    new \PhpSieveManager\Filters\Actions\FileIntoFilterAction(['mailbox' => [$action->value]])
+                    new \PhpSieveManager\Filters\Actions\FileIntoFilterAction(['mailbox' => $action->value])
                 );
             }
             if ($action->action == 'reject') {