diff --git a/etc/bash.bashrc b/etc/bash.bashrc
index 7d9fbb2..6be7239 100644
--- a/etc/bash.bashrc
+++ b/etc/bash.bashrc
@@ -155,6 +155,8 @@ function __vte_urlencode {
 # If not running interactively, don't do anything
 [[ $- != *i* ]] && return
 
+[[ ! -v MIAOU_BASH_DIR ]] && MIAOU_BASH_DIR=/opt/miaou-bash && export MIAOU_BASH_DIR
+
 ## Add path for TOOLBOX if any
 [[ -d "/TOOLBOX" ]] && PATH=$PATH:/TOOLBOX || true
 
diff --git a/lib/self-upgrade.bash b/lib/self-upgrade.bash
index a9d857d..ebae6db 100644
--- a/lib/self-upgrade.bash
+++ b/lib/self-upgrade.bash
@@ -18,8 +18,9 @@ function self_upgrade {
   fi
 }
 
+#TODO: to remove
 function repair_miaou_bash_dir {
-  if [[ -v MIAOU_BASH_DIR ]]; then
+  if [[ ! -v MIAOU_BASH_DIR ]]; then
     >&2 echo 'WARNING: MIAOU_BASH_DIR undefined : repair-mode enabled'
     MIAOU_BASH_DIR=/opt/miaou-bash
     export MIAOU_BASH_DIR