diff --git a/hack/verify-generated-swagger-docs.sh b/hack/verify-generated-swagger-docs.sh
index 4931baefab3..bda93a84533 100755
--- a/hack/verify-generated-swagger-docs.sh
+++ b/hack/verify-generated-swagger-docs.sh
@@ -70,7 +70,7 @@ ret=0
 pushd "${KUBE_ROOT}" > /dev/null 2>&1
   # Test for diffs
   _output=""
-  for file in ${TARGET_FILES[*]}; do
+  for file in "${TARGET_FILES[@]}"; do
     _output="${_output}$(diff -Naupr -I 'Auto generated by' "${KUBE_ROOT}/${file}" "${_kubetmp}/${file}")" || ret=1
   done