diff --git a/README.md b/README.md
index 62c06b6..fa5cc34 100644
--- a/README.md
+++ b/README.md
@@ -31,17 +31,24 @@ requires setting environment variables, for example:
 
 ```
 export WINGS_ENDPOINT=https://api.wings.dev
-export WINGS_PROJECT=amsterdam.bij1.org
+export WINGS_PROJECT=<PROJECT_ID>
 export WINGS_APP_KEY=<APP_KEY>
 ```
 
+These credentials can be generated by adding an App in the Wings admin
+backend.
+
 ## `yarn migrate`
 
 Converts all articles and pages that do not exist in WordPress yet and
-publishes them along with their media, requires setting environment variables, for example:
+publishes them along with their media, requires setting environment
+variables, for example:
 
 ```
 export WP_ENDPOINT=http://localhost:8000/wp-json
-export WP_USER=<user>
-export WP_PASSWORD=<pw>
+export WP_USER=<USERNAME>
+export WP_PASSWORD=<APPLICATION_PASSWORD>
 ```
+
+Note that using this API requires a specific application password
+which can be generated from the user management page.
diff --git a/src/fetch.js b/src/fetch.js
index b1ee1cd..a6d67f0 100644
--- a/src/fetch.js
+++ b/src/fetch.js
@@ -7,7 +7,7 @@ console.log(query);
 got.post(process.env.WINGS_ENDPOINT || 'https://api.wings.dev', {
     headers: {
         "Authorization": "Bearer " + process.env.WINGS_APP_KEY,
-        "x-wings-app-domain": process.env.WINGS_PROJECT
+        "X-Wings-Project": process.env.WINGS_PROJECT
     },
     json: {query}
 }).json().then((data) => {