diff --git a/.github/workflows/publish-agb.yml b/.github/workflows/publish-agb.yml
index 73618279..f7f30457 100644
--- a/.github/workflows/publish-agb.yml
+++ b/.github/workflows/publish-agb.yml
@@ -41,8 +41,7 @@ jobs:
       - name: Install mdbook
         run: cargo install mdbook
       - name: Build the book
-        run: mdbook build
-        working-directory: book
+        run: just build-book
       - name: Deploy the book
         uses: JamesIves/github-pages-deploy-action@v4.2.5
         with:
diff --git a/justfile b/justfile
index 9f93aaff..8b292061 100644
--- a/justfile
+++ b/justfile
@@ -14,6 +14,9 @@ build-roms:
 
     (cd examples/target && zip examples.zip examples/*.gba)
 
+build-book:
+    (cd book && mdbook build)
+
 _build-rom folder name:
     #!/usr/bin/env bash
     set -euxo pipefail