diff --git a/README.md b/README.md
index fccf0a9..9de183b 100755
--- a/README.md
+++ b/README.md
@@ -70,7 +70,7 @@ You can also provide your own shell script if your gateway is not supported yet.
    * [Outputs](#outputs)
 
 <!-- Created by https://github.com/ekalinin/github-markdown-toc -->
-<!-- Added by: flaupretre, at: Tue Jul 25 12:09:57 UTC 2023 -->
+<!-- Added by: flaupretre, at: Sat Aug 19 14:30:13 UTC 2023 -->
 
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diff --git a/tunnel.sh b/tunnel.sh
index a4f3716..9733e98 100755
--- a/tunnel.sh
+++ b/tunnel.sh
@@ -4,13 +4,13 @@ ret=0
 
 #---
 
-function ps_is_busybox()
+ps_is_busybox()
 {
 [ "$(readlink /bin/ps)" = "/bin/busybox" ]
 }
 #---
 
-function process_is_up()
+process_is_up()
 {
   local pid ret