X-Git-Url: http://source.bookstackapp.com/bookstack/blobdiff_plain/b77ab6f3af996f924bd2ddbac6e88f61a8bf6cf9..refs/pull/5676/head:/app/Entities/Controllers/BookController.php

diff --git a/app/Entities/Controllers/BookController.php b/app/Entities/Controllers/BookController.php
index a1c586f47..b1685081a 100644
--- a/app/Entities/Controllers/BookController.php
+++ b/app/Entities/Controllers/BookController.php
@@ -70,7 +70,7 @@ class BookController extends Controller
     /**
      * Show the form for creating a new book.
      */
-    public function create(string $shelfSlug = null)
+    public function create(?string $shelfSlug = null)
     {
         $this->checkPermission('book-create-all');
 
@@ -93,7 +93,7 @@ class BookController extends Controller
      * @throws ImageUploadException
      * @throws ValidationException
      */
-    public function store(Request $request, string $shelfSlug = null)
+    public function store(Request $request, ?string $shelfSlug = null)
     {
         $this->checkPermission('book-create-all');
         $validated = $this->validate($request, [