diff --git a/doc/index.md b/doc/index.md
index 929edac..d9224b7 100644
--- a/doc/index.md
+++ b/doc/index.md
@@ -3,8 +3,9 @@
 ## Initiate again
 
 Rk: useful when timezone has changed or ghostty command has been installed afterwards
+    may require SUDO privilege
 
-`miaou-bash --self-upgrade` #TODO: does not apply anymore
+`miaou-bash --self-upgrade`
 
 ## debug, use of MIAOU_DEBUG
 
diff --git a/lib/self-upgrade.bash b/lib/self-upgrade.bash
index 557e22f..27a6718 100644
--- a/lib/self-upgrade.bash
+++ b/lib/self-upgrade.bash
@@ -34,7 +34,9 @@ function system_upgrade {
   current=$("$MIAOU_BASH_DIR"/bin/miaou-bash --version)
   latest=$("$MIAOU_BASH_DIR"/tools/wget_semver artcode miaou/miaou-bash)
   if [[ "$current" == "$latest" ]]; then
-    echo "up-to-date version: $current"
+    echo "up-to-date version: $current (Ctrl-c to bypass reinitialization)"
+    sudo_root
+    sudo miaou-bash "$MIAOU_BASH_DIR"/lib/initiate.bash
   else
     echo "new version available: $latest"
     #TODO: should download file self-upgrade.bash itself before calling it against