diff --git a/scripts/upgrade b/scripts/upgrade
index 180f07c..dc24151 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -106,10 +106,8 @@ ynh_script_progression --message="Updating a configuration file..." --weight=1
 
 CONF=$install_dir/config/config.js
 if test -f "$CONF"; then
-    	supportMailboxKey=$(ynh_read_var_in_file --file=$CONF --key=supportMailboxPublicKey)
+    supportMailboxKey=$(ynh_read_var_in_file --file=$CONF --key=supportMailboxPublicKey)
 	adminKeys=$(ynh_read_var_in_file --file=$CONF --key=adminKeys)
-	echo $supportMailboxKey
-	echo $adminKeys
 fi
 
 ynh_add_config --template="config.js" --destination="$install_dir/config/config.js"