diff --git a/flake.nix b/flake.nix
index 9cd826b8..fdaa0b67 100644
--- a/flake.nix
+++ b/flake.nix
@@ -307,6 +307,9 @@
 
           # Needed for finding broken markdown links
           lychee
+
+          # Useful for editing the book locally
+          mdbook
         ]);
       };
     });