diff --git a/.github/workflows/buildtest.yml b/.github/workflows/buildtest.yml
index a291e70..7ee4ca1 100644
--- a/.github/workflows/buildtest.yml
+++ b/.github/workflows/buildtest.yml
@@ -10,6 +10,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
 
+    strategy:
+      matrix:
+        package: [actions-languageservice,actions-languageserver]
+
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js 16.x
@@ -21,5 +25,7 @@ jobs:
     - run: npm ci
       env:
         NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-    - run: npm run build --if-present
+    - run: npm run build
+      working-directory: ${{ matrix.package }}
     - run: npm test
+      working-directory: ${{ matrix.package }}