diff --git a/cluster/kubemark/iks/config-default.sh b/cluster/kubemark/iks/config-default.sh
index b74a6ab5d8..62c041a6fa 100644
--- a/cluster/kubemark/iks/config-default.sh
+++ b/cluster/kubemark/iks/config-default.sh
@@ -16,6 +16,7 @@
 
 # Cloud information
 RANDGEN=$(dd if=/dev/urandom bs=64 count=1 2>/dev/null | base64 | tr -d "=+/" | dd bs=16 count=1 2>/dev/null | sed 's/[A-Z]//g')
+# shellcheck disable=2034 # Variable sourced in other scripts.
 KUBE_NAMESPACE="kubemark_${RANDGEN}"
 KUBEMARK_IMAGE_TAG="${KUBEMARK_IMAGE_TAG:-2}"
 KUBEMARK_IMAGE_LOCATION="${KUBEMARK_IMAGE_LOCATION:-${KUBE_ROOT}/cluster/images/kubemark}"
diff --git a/hack/.shellcheck_failures b/hack/.shellcheck_failures
index f66781abb4..a5de8ff948 100644
--- a/hack/.shellcheck_failures
+++ b/hack/.shellcheck_failures
@@ -19,7 +19,6 @@
 ./cluster/gce/upgrade.sh
 ./cluster/gce/util.sh
 ./cluster/images/conformance/run_e2e.sh
-./cluster/kubemark/iks/config-default.sh
 ./cluster/kubemark/util.sh
 ./cluster/log-dump/log-dump.sh
 ./cluster/pre-existing/util.sh