diff --git a/pkg/asset/ignition/bootstrap/bootstrap.go b/pkg/asset/ignition/bootstrap/bootstrap.go
index 09dd63faf16..cc3eb50e00f 100644
--- a/pkg/asset/ignition/bootstrap/bootstrap.go
+++ b/pkg/asset/ignition/bootstrap/bootstrap.go
@@ -30,7 +30,7 @@ import (
 
 const (
 	rootDir              = "/opt/openshift"
-	defaultReleaseImage  = "registry.svc.ci.openshift.org/openshift/origin-release:v4.0"
+	defaultReleaseImage  = "quay.io/openshift-release-dev/ocp-release:4.0.0-4"
 	bootstrapIgnFilename = "bootstrap.ign"
 )
 
@@ -141,7 +141,7 @@ func (a *Bootstrap) getTemplateData(installConfig *types.InstallConfig, adminKub
 	}
 
 	releaseImage := defaultReleaseImage
-	if ri, ok := os.LookupEnv("OPENSHIFT_INSTALL_RELEASE_IMAGE_OVERRIDE"); ok && ri != "" {
+	if ri, ok := os.LookupEnv("_OPENSHIFT_INSTALL_RELEASE_IMAGE_OVERRIDE"); ok && ri != "" {
 		logrus.Warn("Found override for ReleaseImage. Please be warned, this is not advised")
 		releaseImage = ri
 	}
diff --git a/pkg/rhcos/builds.go b/pkg/rhcos/builds.go
index a1a76158d9c..32dce96aeff 100644
--- a/pkg/rhcos/builds.go
+++ b/pkg/rhcos/builds.go
@@ -33,9 +33,15 @@ type metadata struct {
 }
 
 func fetchLatestMetadata(ctx context.Context, channel string) (metadata, error) {
-	build, err := fetchLatestBuild(ctx, channel)
-	if err != nil {
-		return metadata{}, errors.Wrap(err, "failed to fetch latest build")
+	var build string
+	var err error
+	if channel == DefaultChannel {
+		build = "47.198"
+	} else {
+		build, err = fetchLatestBuild(ctx, channel)
+		if err != nil {
+			return metadata{}, errors.Wrap(err, "failed to fetch latest build")
+		}
 	}
 
 	url := fmt.Sprintf("%s/%s/%s/meta.json", baseURL, channel, build)