diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c5545fe8c50e..691ea5ddf4d0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -25,7 +25,6 @@ jobs:
       uses: actions/gcloud/cli@master
       env:
         REGISTRY: gcr.io/k8s-staging-cluster-api
-        ARCH: amd64
       with:
         entrypoint: /bin/bash
         args: |