diff --git a/book.toml b/book.toml
index 4eadf25..271039c 100644
--- a/book.toml
+++ b/book.toml
@@ -7,5 +7,6 @@ title = "FuzzyTags: The Book"
 
 [output.html]
 git-repository-url = "https://git.openprivacy.ca/openprivacy/fuzzytags"
+default-theme="ayu"
 
 [preprocessor.katex]
\ No newline at end of file