diff --git a/lib/internal/Magento/Framework/App/DeploymentConfig/BackendConfig.php b/lib/internal/Magento/Framework/App/DeploymentConfig/BackendConfig.php
index 62ee7b81e34e8..1bfd48fd1f2f3 100644
--- a/lib/internal/Magento/Framework/App/DeploymentConfig/BackendConfig.php
+++ b/lib/internal/Magento/Framework/App/DeploymentConfig/BackendConfig.php
@@ -28,7 +28,7 @@ public function __construct(array $data)
         if (!isset($data[self::KEY_FRONTNAME])) {
             throw new \InvalidArgumentException("No backend frontname provided.");
         }
-        if ($data[self::KEY_FRONTNAME] === '') {
+        if (empty($data[self::KEY_FRONTNAME])) {
             throw new \InvalidArgumentException("Empty backend frontname provided.");
         }
         if (!preg_match('/^[a-zA-Z0-9_]+$/', $data[self::KEY_FRONTNAME])) {