diff --git a/src/Command/WarrantySMSCommand.php b/src/Command/WarrantySMSCommand.php
index 24ae7542..dfacab65 100644
--- a/src/Command/WarrantySMSCommand.php
+++ b/src/Command/WarrantySMSCommand.php
@@ -37,14 +37,16 @@ class WarrantySMSCommand extends Command
 
     protected function execute(InputInterface $input, OutputInterface $output)
     {
-        $date = new DateTime();
         $date_string = $input->getArgument('date');
 
+        // if date is specified
         if (!empty($date_string))
-        {
             $date = DateTime::createFromFormat('Ymd', $date_string);
-            $date->modify('-1 month');
-        }
+        else
+            $date = new DateTime();
+
+        // -1 month
+        $date->modify('-1 month');
 
         $warrs = $this->em->getRepository(Warranty::class)->findBy(['date_expire' => $date]);