diff --git a/src/proto_http.c b/src/proto_http.c
index 33aaf67..dcf09c8 100644
--- a/src/proto_http.c
+++ b/src/proto_http.c
@@ -2620,6 +2620,9 @@
 			if (txn->flags & TX_WAIT_NEXT_RQ)
 				goto failed_keep_alive;
 
+			if (s->fe->options & PR_O_IGNORE_PRB)
+				goto failed_keep_alive;
+
 			/* we cannot return any message on error */
 			if (msg->err_pos >= 0) {
 				http_capture_bad_message(&s->fe->invalid_req, s, msg, msg->msg_state, s->fe);
@@ -2650,6 +2653,9 @@
 			if (txn->flags & TX_WAIT_NEXT_RQ)
 				goto failed_keep_alive;
 
+			if (s->fe->options & PR_O_IGNORE_PRB)
+				goto failed_keep_alive;
+
 			/* read timeout : give up with an error message. */
 			if (msg->err_pos >= 0) {
 				http_capture_bad_message(&s->fe->invalid_req, s, msg, msg->msg_state, s->fe);
@@ -2679,6 +2685,9 @@
 			if (txn->flags & TX_WAIT_NEXT_RQ)
 				goto failed_keep_alive;
 
+			if (s->fe->options & PR_O_IGNORE_PRB)
+				goto failed_keep_alive;
+
 			if (msg->err_pos >= 0)
 				http_capture_bad_message(&s->fe->invalid_req, s, msg, msg->msg_state, s->fe);
 			txn->status = 400;