diff --git a/flake.nix b/flake.nix
index 1f7737abb..66b2598af 100644
--- a/flake.nix
+++ b/flake.nix
@@ -308,6 +308,9 @@
 
           # Needed for finding broken markdown links
           lychee
+
+          # Useful for editing the book locally
+          mdbook
         ]);
       };
     });