diff --git a/.github/workflows/ci-bundling-trial.yml b/.github/workflows/ci-bundling-trial.yml
index 43bac82623..aab33ea461 100644
--- a/.github/workflows/ci-bundling-trial.yml
+++ b/.github/workflows/ci-bundling-trial.yml
@@ -321,6 +321,9 @@ jobs:
       - name: 'Install dependencies'
         run: 'npm ci'
 
+      - name: 'Build project'
+        run: 'npm run build'
+
       - name: 'Run Integration Tests'
         env:
           GEMINI_API_KEY: '${{ secrets.GEMINI_API_KEY }}'
@@ -352,6 +355,9 @@ jobs:
       - name: 'Install dependencies'
         run: 'npm ci'
 
+      - name: 'Build project'
+        run: 'npm run build'
+
       - name: 'Fix rollup optional dependencies on macOS'
         run: 'npm cache clean --force'
         shell: 'bash'
@@ -388,6 +394,10 @@ jobs:
         run: 'npm install vitest node-pty --no-save'
         shell: 'pwsh'
 
+      - name: 'Build project'
+        run: 'npm run build'
+        shell: 'pwsh'
+
       - name: 'Run Integration Tests'
         env:
           GEMINI_API_KEY: '${{ secrets.GEMINI_API_KEY }}'