diff --git a/glance/templates/bin/_nginx.sh.tpl b/glance/templates/bin/_nginx.sh.tpl
index 92b09c0f82..53418a5ecf 100644
--- a/glance/templates/bin/_nginx.sh.tpl
+++ b/glance/templates/bin/_nginx.sh.tpl
@@ -3,14 +3,14 @@ set -xe
 
 COMMAND="${@:-start}"
 
-function start () {
+start () {
   envsubst < /etc/nginx/nginx.conf > /tmp/nginx.conf
   cat /tmp/nginx.conf
   nginx -t -c /tmp/nginx.conf
   exec nginx -c /tmp/nginx.conf
 }
 
-function stop () {
+stop () {
   nginx -s stop
 }