diff --git a/build/common.sh b/build/common.sh
index 9f9c3e58f74..32cd03650f8 100755
--- a/build/common.sh
+++ b/build/common.sh
@@ -29,7 +29,7 @@ readonly DOCKER_MACHINE_DRIVER=${DOCKER_MACHINE_DRIVER:-"virtualbox --virtualbox
 # This will canonicalize the path
 KUBE_ROOT=$(cd $(dirname "${BASH_SOURCE}")/.. && pwd -P)
 
-source hack/lib/init.sh
+source "${KUBE_ROOT}/hack/lib/init.sh"
 
 # Incoming options
 #
diff --git a/build/copy-output.sh b/build/copy-output.sh
index 97acc456c94..7b455f8c216 100755
--- a/build/copy-output.sh
+++ b/build/copy-output.sh
@@ -23,7 +23,7 @@ set -o nounset
 set -o pipefail
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
-source "$KUBE_ROOT/build/common.sh"
+source "${KUBE_ROOT}/build/common.sh"
 
 kube::build::verify_prereqs
 kube::build::copy_output
diff --git a/build/make-build-image.sh b/build/make-build-image.sh
index cc92ae1e7aa..d4b69605c64 100755
--- a/build/make-build-image.sh
+++ b/build/make-build-image.sh
@@ -25,7 +25,7 @@ set -o nounset
 set -o pipefail
 
 KUBE_ROOT="$(dirname "${BASH_SOURCE}")/.."
-source "$KUBE_ROOT/build/common.sh"
+source "${KUBE_ROOT}/build/common.sh"
 
 kube::build::verify_prereqs
 kube::build::build_image
diff --git a/build/make-clean.sh b/build/make-clean.sh
index 5fcfd075623..9a4ad7df13d 100755
--- a/build/make-clean.sh
+++ b/build/make-clean.sh
@@ -20,7 +20,7 @@ set -o nounset
 set -o pipefail
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
-source "$KUBE_ROOT/build/common.sh"
+source "${KUBE_ROOT}/build/common.sh"
 
 kube::build::verify_prereqs
 kube::build::clean_output
diff --git a/build/push-devel-build.sh b/build/push-devel-build.sh
index ebb5c5235a9..244f0071a81 100755
--- a/build/push-devel-build.sh
+++ b/build/push-devel-build.sh
@@ -29,6 +29,6 @@ KUBE_GCS_UPLOAD_RELEASE=y
 KUBE_GCS_RELEASE_PREFIX="devel/${LATEST}"
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
-source "$KUBE_ROOT/build/common.sh"
+source "${KUBE_ROOT}/build/common.sh"
 
 kube::release::gcs::release
diff --git a/build/release.sh b/build/release.sh
index b5d99e45538..2b2704b39dc 100755
--- a/build/release.sh
+++ b/build/release.sh
@@ -24,7 +24,7 @@ set -o nounset
 set -o pipefail
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
-source "$KUBE_ROOT/build/common.sh"
+source "${KUBE_ROOT}/build/common.sh"
 
 KUBE_RELEASE_RUN_TESTS=${KUBE_RELEASE_RUN_TESTS-y}
 
diff --git a/build/shell.sh b/build/shell.sh
index 071b7be4d75..d4c2a7452c7 100755
--- a/build/shell.sh
+++ b/build/shell.sh
@@ -23,7 +23,7 @@ set -o nounset
 set -o pipefail
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
-source "$KUBE_ROOT/build/common.sh"
+source "${KUBE_ROOT}/build/common.sh"
 
 kube::build::verify_prereqs
 kube::build::build_image