diff --git a/site/plugins/admin/lang/pl_PL.json b/site/plugins/admin/lang/pl_PL.json
index 179e64e5..961345b2 100644
--- a/site/plugins/admin/lang/pl_PL.json
+++ b/site/plugins/admin/lang/pl_PL.json
@@ -8,6 +8,9 @@
   "admin_information": "Informacja",
   "admin_installed": "Zainstalowany",
   "admin_keywords": "Słowa kluczowe",
+  "admin_documentation": "Documentation",
+  "admin_memcache_server": "Memcache Server",
+  "admin_memcache_port": "Memcache Port",
   "admin_login": "Zaloguj",
   "admin_entries": "Wpisy",
   "admin_extends": "Rozszerzenia",