diff --git a/scripts/upgrade b/scripts/upgrade
index 07f745e..d4691b6 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -62,6 +62,12 @@ then
     ynh_exec_warn_less yunohost firewall disallow TCP $port
 fi
 
+# If final_path doesn't exist, create it
+if [ -z "$architecture" ]; then
+	architecture="dpkg --print-architecture"
+	architecture=$(ynh_app_setting_get --app=$app --key=architecture)
+fi
+
 # If final_path doesn't exist, create it
 if [ -z "$final_path" ]; then
 	final_path=/opt/yunohost/$app