diff --git a/system/src/Grav/Common/Page/Pages.php b/system/src/Grav/Common/Page/Pages.php
index 3d3fd3587..307bf8d61 100644
--- a/system/src/Grav/Common/Page/Pages.php
+++ b/system/src/Grav/Common/Page/Pages.php
@@ -126,6 +126,10 @@ class Pages
         $this->ignore_folders = $config->get('system.pages.ignore_folders');
         $this->ignore_hidden = $config->get('system.pages.ignore_hidden');
 
+        $this->instances = [];
+        $this->children = [];
+        $this->routes = [];
+
         $this->buildPages();
     }