diff --git a/test/build-utils.sh b/test/build-utils.sh
index 408e0b771..2c8c102e0 100755
--- a/test/build-utils.sh
+++ b/test/build-utils.sh
@@ -18,14 +18,10 @@
 : "${PROJECT:=k8s-cri-containerd}"
 
 # GOOGLE_APPLICATION_CREDENTIALS is the path of service account file.
-if [ -z "${GOOGLE_APPLICATION_CREDENTIALS:-""}" ]; then
-  echo "GOOGLE_APPLICATION_CREDENTIALS is not set"
-  exit 1
+if [ -n "${GOOGLE_APPLICATION_CREDENTIALS:-}" ]; then
+  gcloud auth activate-service-account --key-file "${GOOGLE_APPLICATION_CREDENTIALS}" --project="${PROJECT}"
 fi
 
-# Activate gcloud service account.
-gcloud auth activate-service-account --key-file "${GOOGLE_APPLICATION_CREDENTIALS}" --project="${PROJECT}"
-
 cat /etc/os-release
 apt-get update
 apt-get install -y libseccomp2 libseccomp-dev