diff --git a/.github/workflows/merge-to-master.yml b/.github/workflows/merge-to-master.yml
index fff31e5..bb9b630 100644
--- a/.github/workflows/merge-to-master.yml
+++ b/.github/workflows/merge-to-master.yml
@@ -29,6 +29,7 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm ci
+      - run: npm run build
       - run: nyc npm test && nyc report --reporter=text-lcov | ./node_modules/coveralls/bin/coveralls.js
         env:
           COVERALLS_SERVICE_NAME: GithubActions
diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index 3064e1c..83f765f 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -21,6 +21,8 @@ jobs:
           node-version: ${{ matrix.node }}
       - name: Install dependencies
         run: npm ci
+      - name: Build
+        run: npm run build
       - name: Run tests
         run: npm run test