diff --git a/test/instrumentation/stability-utils.sh b/test/instrumentation/stability-utils.sh
index 757311bd9c2..2f674d08d76 100755
--- a/test/instrumentation/stability-utils.sh
+++ b/test/instrumentation/stability-utils.sh
@@ -123,7 +123,7 @@ kube::update::documentation() {
   temp_file=$(mktemp)
   arg1=$1
   arg2=$2
-  doUpdateDocs=$(go run "test/instrumentation/documentation/main.go" --major $arg1 --minor $arg2 -- 1>"${temp_file}")
+  doUpdateDocs=$(go run "test/instrumentation/documentation/main.go" --major "$arg1" --minor "$arg2" -- 1>"${temp_file}")
   if ! $doUpdateDocs; then
     echo "${red}!!! updating documentation has failed! ${reset}" >&2
     exit 1
diff --git a/test/instrumentation/update-documentation.sh b/test/instrumentation/update-documentation.sh
index 5090f639cfd..b27a8ae3770 100755
--- a/test/instrumentation/update-documentation.sh
+++ b/test/instrumentation/update-documentation.sh
@@ -32,4 +32,4 @@ kube::version::get_version_vars
 # update the documented list of metrics
 kube::update::documentation::list
 # now write the actual documentation file
-kube::update::documentation $KUBE_GIT_MAJOR $KUBE_GIT_MINOR
+kube::update::documentation "$KUBE_GIT_MAJOR" "$KUBE_GIT_MINOR"