diff --git a/book.json b/book.json
index c063fa9330..e80fbe268f 100644
--- a/book.json
+++ b/book.json
@@ -6,8 +6,8 @@
       "edit-link",
       "forkmegithub",
       "hints",
-      "page-toc",
       "numbered-headings",
+      "page-toc",
       "terminal",
       "toolbar"
     ],