diff --git a/include/proto/h1.h b/include/proto/h1.h
index c82e17a..e6a4204 100644
--- a/include/proto/h1.h
+++ b/include/proto/h1.h
@@ -41,7 +41,7 @@
 int http_forward_trailers(struct http_msg *msg);
 int h1_headers_to_hdr_list(char *start, const char *stop,
                            struct http_hdr *hdr, unsigned int hdr_num,
-                           struct h1m *h1m);
+                           struct h1m *h1m, union h1_sl *slp);
 int h1_measure_trailers(const struct buffer *buf, unsigned int ofs, unsigned int max);
 
 /* Macros used in the HTTP/1 parser, to check for the expected presence of
diff --git a/include/types/h1.h b/include/types/h1.h
index 7edfbd8..c6c97dc 100644
--- a/include/types/h1.h
+++ b/include/types/h1.h
@@ -22,6 +22,8 @@
 #ifndef _TYPES_H1_H
 #define _TYPES_H1_H
 
+#include <common/http.h>
+
 /* Legacy version of the HTTP/1 message state, used by the channels, should
  * ultimately be removed.
  */
@@ -161,4 +163,20 @@
 	int err_state;              // state where the first error was met (H1 or H2)
 };
 
+/* basic H1 start line, describes either the request and the response */
+union h1_sl {                          /* useful start line pointers, relative to ->sol */
+	struct {
+		int m, m_l;            /* METHOD, length */
+		int u, u_l;            /* URI, length */
+		int v, v_l;            /* VERSION, length */
+		enum http_meth_t meth; /* method */
+	} rq;                          /* request line : field, length */
+	struct {
+		int v, v_l;            /* VERSION, length */
+		int c, c_l;            /* CODE, length */
+		int r, r_l;            /* REASON, length */
+		uint16_t status;       /* status code */
+	} st;                          /* status line : field, length */
+};
+
 #endif /* _TYPES_H1_H */