diff --git a/build/common.sh b/build/common.sh
index e298f627362..5864da0496c 100755
--- a/build/common.sh
+++ b/build/common.sh
@@ -258,7 +258,7 @@ function kube::build::update_dockerfile() {
   sed "${sed_opts[@]}" "s/KUBE_BUILD_IMAGE_CROSS_TAG/${KUBE_BUILD_IMAGE_CROSS_TAG}/" "${LOCAL_OUTPUT_BUILD_CONTEXT}/Dockerfile"
 }
 
-function  kube::build::set_proxy() {
+function kube::build::set_proxy() {
   if [[ -n "${KUBERNETES_HTTPS_PROXY:-}" ]]; then
     echo "ENV https_proxy $KUBERNETES_HTTPS_PROXY" >> "${LOCAL_OUTPUT_BUILD_CONTEXT}/Dockerfile"
   fi