diff --git a/scripts/upgrade b/scripts/upgrade
index 6201ecb..6ca4f58 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -31,11 +31,9 @@ cache=$(ynh_app_setting_get "$app" cache)
 size=$(ynh_app_setting_get "$app" size)
 registration=$(ynh_app_setting_get "$app" registration)
 
-
 psql_db=$(ynh_app_setting_get "$app" psql_db)
-psqlpwd=$(ynh_app_setting_get "$app" psqlpwd)
 
-if [ -z "$psql_db" ]
+if [ -n "$psql_db" ]
 then
     db_name=$(ynh_app_setting_get "$app" psql_db)
     db_pwd=$(ynh_app_setting_get "$app" psqlpwd)