diff --git a/charts/apiserver/templates/bin/_anchor.tpl b/charts/apiserver/templates/bin/_anchor.tpl
index ef5d4f6c..081b8604 100644
--- a/charts/apiserver/templates/bin/_anchor.tpl
+++ b/charts/apiserver/templates/bin/_anchor.tpl
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-set -x
+set -xu
 
 snapshot_files() {
     SNAPSHOT_DIR=${1}
diff --git a/charts/controller_manager/templates/bin/_anchor.tpl b/charts/controller_manager/templates/bin/_anchor.tpl
index e1d1b612..20b76292 100644
--- a/charts/controller_manager/templates/bin/_anchor.tpl
+++ b/charts/controller_manager/templates/bin/_anchor.tpl
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-set -x
+set -xu
 
 compare_copy_files() {
 
diff --git a/charts/etcd/templates/bin/_etcdctl_anchor.tpl b/charts/etcd/templates/bin/_etcdctl_anchor.tpl
index 8b1ea8fe..679370ed 100644
--- a/charts/etcd/templates/bin/_etcdctl_anchor.tpl
+++ b/charts/etcd/templates/bin/_etcdctl_anchor.tpl
@@ -12,7 +12,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-set -x
+set -xu
 TEMP_MANIFEST=/tmp/etcd.yaml
 
 sync_file () {
diff --git a/charts/haproxy/templates/bin/_anchor.tpl b/charts/haproxy/templates/bin/_anchor.tpl
index bdc820d0..b2920232 100644
--- a/charts/haproxy/templates/bin/_anchor.tpl
+++ b/charts/haproxy/templates/bin/_anchor.tpl
@@ -17,7 +17,7 @@ limitations under the License.
 
 {{- $envAll := . }}
 
-set -x
+set -xu
 
 compare_copy_files() {
     {{- range .Values.conf.anchor.files_to_copy }}
diff --git a/charts/scheduler/templates/bin/_anchor.tpl b/charts/scheduler/templates/bin/_anchor.tpl
index 86e12ea5..9d8a2da0 100644
--- a/charts/scheduler/templates/bin/_anchor.tpl
+++ b/charts/scheduler/templates/bin/_anchor.tpl
@@ -15,7 +15,7 @@
 # limitations under the License.
 */}}
 
-set -x
+set -xu
 
 compare_copy_files() {
     {{- range .Values.anchor.files_to_copy }}