diff --git a/reg-tests/http-messaging/h00002.vtc b/reg-tests/http-messaging/h00002.vtc
index 0b2daee30..6fc536aed 100644
--- a/reg-tests/http-messaging/h00002.vtc
+++ b/reg-tests/http-messaging/h00002.vtc
@@ -40,6 +40,7 @@ haproxy h1 -conf {
     defaults
 	#log stdout format raw daemon
 	mode http
+	option http-buffer-request
 	#option http-use-htx
 	timeout connect 1s
 	timeout client  1s
diff --git a/reg-tests/http-messaging/h00003.vtc b/reg-tests/http-messaging/h00003.vtc
index acb56b009..ec117563b 100644
--- a/reg-tests/http-messaging/h00003.vtc
+++ b/reg-tests/http-messaging/h00003.vtc
@@ -40,6 +40,7 @@ haproxy h1 -conf {
     defaults
 	#log stdout format raw daemon
 	mode http
+	option http-buffer-request
 	option http-use-htx
 	timeout connect 1s
 	timeout client  1s