diff --git a/src/Cli/Commands/Command.php b/src/Cli/Commands/Command.php
index c062b4e..a53e8ba 100644
--- a/src/Cli/Commands/Command.php
+++ b/src/Cli/Commands/Command.php
@@ -54,6 +54,8 @@ class Command
      */
     public function argument($name)
     {
+        if(!isset($this->args[$name])) return '';
+
         return $this->args[$name];
     }