diff --git a/src/Traits/RegistrarMethods.php b/src/Traits/RegistrarMethods.php
index 9d1bc3a..46c2157 100644
--- a/src/Traits/RegistrarMethods.php
+++ b/src/Traits/RegistrarMethods.php
@@ -83,7 +83,7 @@ public function registrarStop(Worker $worker): void
      */
     public function registrarGetHostIp(): string
     {
-        return $this->registrarHostIp ?: ($this->registrarHostIp = trim(shell_exec('curl -s ifconfig.me')));
+        return $this->registrarHostIp ?: ($this->registrarHostIp = trim(shell_exec('curl -s ifconfig.me') ?: ''));
     }
 
     /**