diff --git a/tests/data/stdout15.txt b/tests/data/stdout15.txt
index 301ccf46b0..07afb70433 100644
--- a/tests/data/stdout15.txt
+++ b/tests/data/stdout15.txt
@@ -1 +1,7 @@
+HTTP/1.4 200 OK
+Fake: yes
+Fake: yes
+Fake: yes
+
+Repeated nonsense-headers
 http://127.0.0.1:8999/want/15 200 26.000