diff --git a/tests/data/test399 b/tests/data/test399
index 46d001a424..da4bae5fde 100644
--- a/tests/data/test399
+++ b/tests/data/test399
@@ -12,11 +12,14 @@ URL
 <server>
 http
 </server>
- <name>
+<name>
 65536 bytes long host name in URL
- </name>
- <command>
-http://%repeat[65536 x a]%/399
+</name>
+<file name="log/input%TESTNUM">
+url = http://%repeat[65536 x a]%/399
+</file>
+<command>
+-K log/input%TESTNUM
 </command>
 </client>