diff --git a/doc/manual/souce/development.md b/doc/manual/souce/development.md
index 6354aa5..335c4b6 100644
--- a/doc/manual/souce/development.md
+++ b/doc/manual/souce/development.md
@@ -72,7 +72,8 @@ cd site/decodal-site
 npm run deploy
 ```
 
-The deploy script runs `npm run build` and then uploads `dist/` to the Pages project named `decodal-site`.
+The deploy script runs `npm run build` and then uploads `dist/` to the Pages project named `decodal-site` on branch `master`.
+Cloudflare Pages treats this as production when the project production branch is `master`.
 Use `CLOUDFLARE_PROJECT_NAME` when deploying to a differently named Pages project.
 
 ```sh
diff --git a/site/decodal-site/package.json b/site/decodal-site/package.json
index c4aa169..1a1b74c 100644
--- a/site/decodal-site/package.json
+++ b/site/decodal-site/package.json
@@ -8,7 +8,7 @@
     "build": "astro build",
     "preview": "astro preview --host 0.0.0.0",
     "build:wasm": "wasm-pack build ../../crates/decodal-wasm --target web --out-dir ../../site/decodal-site/src/wasm --release",
-    "deploy": "npm run build && wrangler pages deploy dist --project-name ${CLOUDFLARE_PROJECT_NAME:-decodal-site}",
+    "deploy": "npm run build && wrangler pages deploy dist --project-name ${CLOUDFLARE_PROJECT_NAME:-decodal-site} --branch ${CLOUDFLARE_BRANCH:-master}",
     "deploy:wasm": "npm run build:wasm && npm run deploy"
   },
   "dependencies": {