diff --git a/book/book.toml b/book/book.toml
index 4db5365e..335b27af 100644
--- a/book/book.toml
+++ b/book/book.toml
@@ -11,3 +11,6 @@ preferred-dark-theme = "colibri"
 git-repository-url = "https://github.com/helix-editor/helix"
 edit-url-template = "https://github.com/helix-editor/helix/edit/master/book/{path}"
 additional-css = ["custom.css"]
+
+[output.html.search]
+use-boolean-and = true