diff --git a/.github/workflows/site.yml b/.github/workflows/site.yml
index 39a8e48a9..73b8186eb 100644
--- a/.github/workflows/site.yml
+++ b/.github/workflows/site.yml
@@ -17,16 +17,14 @@ jobs:
       - name: Get mdBook
         working-directory: book
         run: |
-          export MDBOOK_VERSION="v0.4.2"
+          export MDBOOK_VERSION="v0.4.4"
           export MDBOOK_TARBALL="mdbook-${MDBOOK_VERSION}-x86_64-unknown-linux-gnu.tar.gz"
           export MDBOOK_URL="https://github.com/rust-lang/mdBook/releases/download/${MDBOOK_VERSION}/${MDBOOK_TARBALL}"
           curl -Lf "${MDBOOK_URL}" | tar -xz
 
       - name: Build
         working-directory: book
-        run: |
-          ./mdbook build
-          echo "cxx.rs" > build/CNAME
+        run: ./mdbook build
 
       - name: Push to gh-pages
         working-directory: book/build
diff --git a/book/book.toml b/book/book.toml
index bc2e91321..d3187e0a6 100644
--- a/book/book.toml
+++ b/book/book.toml
@@ -10,4 +10,5 @@ edition = "2018"
 build-dir = "build"
 
 [output.html]
+cname = "cxx.rs"
 git-repository-url = "https://github.com/dtolnay/cxx"