diff --git a/reg-tests/converter/hmac.vtc b/reg-tests/converter/hmac.vtc
index f9d9d35..391e04a 100644
--- a/reg-tests/converter/hmac.vtc
+++ b/reg-tests/converter/hmac.vtc
@@ -7,7 +7,7 @@
 
 server s1 {
 	rxreq
-	txresp
+	txresp -hdr "Connection: close"
 } -repeat 2 -start
 
 haproxy h1 -conf {