diff --git a/include/proto/http_ana.h b/include/proto/http_ana.h
index c226b12545..894357688e 100644
--- a/include/proto/http_ana.h
+++ b/include/proto/http_ana.h
@@ -52,6 +52,7 @@ void http_server_error(struct stream *s, struct stream_interface *si, int err, i
 void http_reply_and_close(struct stream *s, short status, struct http_reply *msg);
 void http_return_srv_error(struct stream *s, struct stream_interface *si);
 struct http_reply *http_error_message(struct stream *s);
+int http_reply_to_htx(struct stream *s, struct htx *htx, struct http_reply *reply);
 int http_reply_message(struct stream *s, struct http_reply *reply);
 int http_forward_proxy_resp(struct stream *s, int final);
 
diff --git a/src/http_ana.c b/src/http_ana.c
index f5add7d980..f7da268210 100644
--- a/src/http_ana.c
+++ b/src/http_ana.c
@@ -4658,7 +4658,7 @@ struct http_reply *http_error_message(struct stream *s)
  * errorfile, an raw file or a log-format string is used. On success, it returns
  * 0. If an error occurs -1 is returned.
  */
-static int http_reply_to_htx(struct stream *s, struct htx *htx, struct http_reply *reply)
+int http_reply_to_htx(struct stream *s, struct htx *htx, struct http_reply *reply)
 {
 	struct buffer *errmsg;
 	struct htx_sl *sl;