diff --git a/book/book.toml b/book/book.toml
index 5a109910cc..6eff613bbe 100644
--- a/book/book.toml
+++ b/book/book.toml
@@ -1,5 +1,5 @@
 [book]
-title = "The Theseus OS Book"
+title = "The Theseus OOS Book"
 authors = ["Kevin Boos", "Lin Zhong"]
 description = "Describes the design principles and implementation details of Theseus, a companion to its source-level docs."
 multilingual = false
@@ -9,4 +9,4 @@ src = "src"
 
 [output.linkcheck]
 optional = true
-## See other linkcheck options here: <https://github.com/Michael-F-Bryan/mdbook-linkcheck#configuration>
\ No newline at end of file
+## See other linkcheck options here: <https://github.com/Michael-F-Bryan/mdbook-linkcheck#configuration>