diff --git a/scripts/upgrade b/scripts/upgrade
index f9aceea..88a6270 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -41,9 +41,6 @@ ynh_systemd_action --service_name=$app --action="stop" --log_path=systemd
 #=================================================
 ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
 
-	ynh_app_setting_delete --app=$app --key=is_public
-fi
-
 if [ -z "$language" ]; then
 	language="en"
 	ynh_app_setting_set --app=$app --key=language --value=$language