diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 83198e80..21540985 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,6 +27,25 @@ jobs:
 
       - name: Check types
         run: ./scripts/lint
+
+  build:
+    name: build
+    runs-on: ubuntu-latest
+    if: github.repository == 'anthropics/anthropic-sdk-typescript'
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+
+      - name: Install dependencies
+        run: yarn install
+
+      - name: Check build
+        run: ./scripts/build
   test:
     name: test
     runs-on: ubuntu-latest