diff --git a/cluster/clientbin.sh b/cluster/clientbin.sh
index 078729eb9d..dc4f673f17 100755
--- a/cluster/clientbin.sh
+++ b/cluster/clientbin.sh
@@ -18,7 +18,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=${KUBE_ROOT:-$(dirname "${BASH_SOURCE}")/..}
+KUBE_ROOT=${KUBE_ROOT:-$(dirname "${BASH_SOURCE[0]}")/..}
 
 # Detect the OS name/arch so that we can find our binary
 case "$(uname -s)" in
diff --git a/cluster/common.sh b/cluster/common.sh
index 2acc6b2600..d7b19b01cf 100755
--- a/cluster/common.sh
+++ b/cluster/common.sh
@@ -20,7 +20,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(cd $(dirname "${BASH_SOURCE}")/.. && pwd)
+KUBE_ROOT=$(cd $(dirname "${BASH_SOURCE[0]}")/.. && pwd)
 
 DEFAULT_KUBECONFIG="${HOME:-.}/.kube/config"
 
diff --git a/cluster/log-dump/log-dump.sh b/cluster/log-dump/log-dump.sh
index d9defea525..650295d6c2 100755
--- a/cluster/log-dump/log-dump.sh
+++ b/cluster/log-dump/log-dump.sh
@@ -63,7 +63,7 @@ readonly max_dump_processes=25
 
 # TODO: Get rid of all the sourcing of bash dependencies eventually.
 function setup() {
-  KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
+  KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/../..
   if [[ -z "${use_custom_instance_list}" ]]; then
     : ${KUBE_CONFIG_FILE:="config-test.sh"}
     echo "Sourcing kube-util.sh"
diff --git a/cluster/pre-existing/util.sh b/cluster/pre-existing/util.sh
index f77b15e910..48d0199d0e 100644
--- a/cluster/pre-existing/util.sh
+++ b/cluster/pre-existing/util.sh
@@ -18,7 +18,7 @@
 # pre-existing Kubernetes master. See test/kubemark/pre-existing/README.md
 # for me details on using a pre-existing provider.
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/../..
 
 source "${KUBE_ROOT}/cluster/common.sh"
 source "${KUBE_ROOT}/hack/lib/util.sh"
diff --git a/cluster/test-e2e.sh b/cluster/test-e2e.sh
index 4ea71b80c7..b42f827813 100755
--- a/cluster/test-e2e.sh
+++ b/cluster/test-e2e.sh
@@ -21,7 +21,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/cluster/kube-util.sh"
 
 echo "Testing cluster with provider: ${KUBERNETES_PROVIDER}" 1>&2
diff --git a/cluster/test-network.sh b/cluster/test-network.sh
index 239bb8aa15..cd0d159e8e 100755
--- a/cluster/test-network.sh
+++ b/cluster/test-network.sh
@@ -24,7 +24,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 KUBE_CONFIG_FILE="config-default.sh"
 
 ${KUBE_ROOT}/hack/ginkgo-e2e.sh --ginkgo.focus=Networking
diff --git a/cluster/test-smoke.sh b/cluster/test-smoke.sh
index 3e0561d898..b5e6d34f92 100755
--- a/cluster/test-smoke.sh
+++ b/cluster/test-smoke.sh
@@ -23,7 +23,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 
 TEST_ARGS="$@"
 
diff --git a/cluster/validate-cluster.sh b/cluster/validate-cluster.sh
index c28dcb0df5..a2848149e7 100755
--- a/cluster/validate-cluster.sh
+++ b/cluster/validate-cluster.sh
@@ -24,7 +24,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 
 if [ -f "${KUBE_ROOT}/cluster/env.sh" ]; then
   source "${KUBE_ROOT}/cluster/env.sh"