diff --git a/Response.php b/Response.php
index aa6b296..92a68a2 100644
--- a/Response.php
+++ b/Response.php
@@ -21,7 +21,7 @@ public function __construct($raw, $info)
         $this->raw       = $raw;
         $this->processed = $raw;
         $this->info      = $info;
-        $this->error     = ! empty($raw['error'])
+        $this->error     = is_array($raw) && ! empty($raw['error'])
             ? $raw
             : null;
         if ( isset($this->info['http_code']) ) {