diff --git a/scripts/upgrade b/scripts/upgrade
index 639b139..f317e68 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -7,18 +7,17 @@ source /usr/share/yunohost/helpers
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
 
-if [[ "${redirect_type:-}" == *"proxy"* ]]
-then
+if [[ "${redirect_type:-}" == *"proxy"* ]]; then
     redirect_type="reverseproxy"
 else
     redirect_type="redirect"
 fi
 ynh_app_setting_set $app 'redirect_type' $redirect_type
 
-if [[ -z "${target:-}" ]] && [[ -n "${redirect_path:-}" ]]
-then
+if [[ -z "${target:-}" ]] && [[ -n "${redirect_path:-}" ]]; then
     target="$redirect_path"
-    ynh_app_setting_set $app target "$redirect_path"
+    ynh_app_setting_delete --app=$app --key=redirect_path
+    ynh_app_setting_set --app=$app --key=target --value="$redirect_path"
 fi
 
 #=================================================