diff --git a/tests/data/test559 b/tests/data/test559
index 878fe2bc85..982209ce9d 100644
--- a/tests/data/test559
+++ b/tests/data/test559
@@ -2,6 +2,7 @@
 <info>
 <keywords>
 CURLOPT_BUFFERSIZE
+HTTP
 </keywords>
 </info>