diff --git a/tests/data/test540 b/tests/data/test540
index f82b240158..c42cb92dc7 100644
--- a/tests/data/test540
+++ b/tests/data/test540
@@ -6,6 +6,7 @@
 <data>
 HTTP/1.1 407 Authorization Required to proxy me my dear
 Proxy-Authenticate: Digest realm="weirdorealm", nonce="12345"
+Content-Length: 33
 
 And you should ignore this data.
 </data>
@@ -22,6 +23,7 @@ Nice proxy auth sir!
 <datacheck>
 HTTP/1.1 407 Authorization Required to proxy me my dear
 Proxy-Authenticate: Digest realm="weirdorealm", nonce="12345"
+Content-Length: 33
 
 HTTP/1.1 200 OK
 Content-Length: 21