Index: manual/book.toml
--- manual/book.toml.orig
+++ manual/book.toml
@@ -7,6 +7,7 @@ description = "The official manual for difftastic, the
 
 [output.html]
 git-repository-url = "https://github.com/wilfred/difftastic"
+copy-fonts = false
 
 [output.html.redirect]
 "/getting_started.html" = "./installation.html"