diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fc4e0edf2..4c2ad2dcf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,6 +11,25 @@ env:
   VALIDATOR_REGISTRY: ${{ secrets.VALIDATOR_REGISTRY }}
 
 jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Install Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.14.x
+      - uses: actions/checkout@v2
+      # In this step, this action saves a list of existing images,
+      # the cache is created without them in the post run.
+      # It also restores the cache if it exists.
+      - uses: satackey/action-docker-layer-caching@v0.0.11
+        # Ignore the failure of a step and avoid terminating the job.
+        continue-on-error: true
+      - name: Build
+        run: |
+          docker network create --driver=bridge --subnet=198.18.0.0/15 --gateway=198.18.0.255 testnet0
+          ./docker.local/bin/build.blobber.sh
+
   test:
     runs-on: ubuntu-20.04
     steps: