diff --git a/src/Wuunder/Http/Request.php b/src/Wuunder/Http/Request.php
index 2be903d..b6f1d64 100644
--- a/src/Wuunder/Http/Request.php
+++ b/src/Wuunder/Http/Request.php
@@ -48,7 +48,7 @@ public function getResponseHeaders()
         $header_text = substr($this->result, 0, $this->headerSize);
 
         foreach (explode("\r\n", $header_text) as $i => $line)
-            if (count($line) > 4 && substr($line, 0, 4) === "HTTP")
+            if (strlen($line) > 4 && substr($line, 0, 4) === "HTTP")
                 $headers['http_code'] = $line;
             else
             {