diff --git a/src/JAXL/http/http_request.php b/src/JAXL/http/http_request.php
index 7f9cacfe..26858c96 100644
--- a/src/JAXL/http/http_request.php
+++ b/src/JAXL/http/http_request.php
@@ -422,7 +422,7 @@ private function parse_shortcut_args($args)
 
     protected function send_line($code)
     {
-        $raw = $this->version." ".$code." ".constant('HTTP_'.$code).HTTPServer::HTTP_CRLF;
+        $raw = $this->version." ".$code." ".constant('HTTPServer::HTTP_'.$code).HTTPServer::HTTP_CRLF;
         $this->send($raw);
     }
 
diff --git a/src/JAXL/http/http_server.php b/src/JAXL/http/http_server.php
index a50a3d11..ffb831c8 100644
--- a/src/JAXL/http/http_server.php
+++ b/src/JAXL/http/http_server.php
@@ -138,7 +138,7 @@ public function on_request($sock, $raw)
             $request->body($raw);
         } else {
             // break on crlf
-            $lines = explode(HTTP_CRLF, $raw);
+            $lines = explode(self::HTTP_CRLF, $raw);
 
             // parse request line
             if ($request->state() == 'wait_for_request_line') {