diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index c87496b2..5d4e9918 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -164,7 +164,9 @@ jobs:
     displayName: Cache node modules
   - script: yarn --frozen-lockfile
     displayName: 'Install dependencies and build'
-  - script: node ./bin/package_headless.js
+  - script: |
+      yarn package-headless
+      node ./bin/package_headless.js
     displayName: 'Package xterm-headless'
   - script: NPM_AUTH_TOKEN="$(NPM_AUTH_TOKEN)" node ./bin/publish.js
     displayName: 'Package and publish to npm'