diff --git a/test/build.sh b/test/build.sh
index 8ea1a7b6..b6c3d2ff 100755
--- a/test/build.sh
+++ b/test/build.sh
@@ -82,7 +82,7 @@ function write-env-file() {
 export KUBE_ENABLE_NODE_PROBLEM_DETECTOR=standalone
 export NODE_PROBLEM_DETECTOR_RELEASE_PATH=${UPLOAD_PATH/gs:\/\//${GCS_URL_PREFIX}}
 export NODE_PROBLEM_DETECTOR_VERSION=${VERSION}
-export NODE_PROBLEM_DETECTOR_TAR_HASH=$(sha1sum ${ROOT_PATH}/node-problem-detector-${VERSION}.tar.gz | cut -d ' ' -f1)
+export NODE_PROBLEM_DETECTOR_TAR_HASH=$(sha1sum ${ROOT_PATH}/node-problem-detector-${VERSION}-linux_amd64.tar.gz | cut -d ' ' -f1)
 export EXTRA_ENVS=NODE_PROBLEM_DETECTOR_IMAGE=${REGISTRY}/node-problem-detector:${TAG}
 EOF