diff --git a/src/controllers/LayoutController.php b/src/controllers/LayoutController.php
index 34ecb5e..e01e4b6 100644
--- a/src/controllers/LayoutController.php
+++ b/src/controllers/LayoutController.php
@@ -76,7 +76,7 @@ public function actionNew(): Response
         $layout = new Layout();
         $layout->name = $this->request->getRequiredParam('name');
         $layout->isDefault = false;
-        $layout->permissions = $this->request->getParam('permissions');
+        $layout->permissions = $this->request->getParam('permissions') ?: [];
 
         if (!CpNav::$plugin->getLayouts()->saveLayout($layout)) {
             return $this->asModelFailure($layout, Craft::t('cp-nav', 'Couldn’t save layout.'), 'layout');
@@ -104,7 +104,7 @@ public function actionSave(): Response
 
         $layout->name = $this->request->getRequiredParam('name');
         $layout->isDefault = false;
-        $layout->permissions = $this->request->getParam('permissions');
+        $layout->permissions = $this->request->getParam('permissions') ?: [];
 
         if (!CpNav::$plugin->getLayouts()->saveLayout($layout)) {
             return $this->asModelFailure($layout, Craft::t('cp-nav', 'Couldn’t save layout.'), 'layout');