diff --git a/scripts/telegram.coffee b/scripts/telegram.coffee
index d6f3c74..eaa995a 100644
--- a/scripts/telegram.coffee
+++ b/scripts/telegram.coffee
@@ -52,7 +52,7 @@ module.exports = (robot) ->
     robot.logger.info "create contact for user #{name}"
     user_info 'user_info ' + name, (user) ->
       [first, last...] = user.name.split ' '
-      phone = if phone? then phone else user.phone
+      phone = phone or user.phone
       if not phone?
         return callback 'serve per forza il tuo numero'
       run_command "add_contact #{phone} '#{first}' '#{last.join ' '}'", (reply) ->