diff --git a/include/proto/htx.h b/include/proto/htx.h
index e618a20..296ff4d 100644
--- a/include/proto/htx.h
+++ b/include/proto/htx.h
@@ -138,6 +138,17 @@
 	return htx_sl_p3(sl);
 }
 
+/* Returns the HTX start-line if set, otherwise it returns NULL. */
+static inline struct htx_sl *htx_get_stline(struct htx *htx)
+{
+	struct htx_sl *sl = NULL;
+
+	if (htx->sl_off != -1)
+		sl = ((void *)htx->blocks + htx->sl_off);
+
+	return sl;
+}
+
 /* Returns the array index of a block given its position <pos> */
 static inline uint32_t htx_pos_to_idx(const struct htx *htx, uint32_t pos)
 {
@@ -421,6 +432,7 @@
         return ret;
 }
 
+
 /* Returns the value of the block <blk>, depending on its type. If there is no
  * value, an empty one is retruned.
  */
@@ -512,6 +524,7 @@
         htx->data = htx->used = htx->tail = htx->wrap  = htx->front = 0;
 	htx->extra = 0;
 	htx->flags = HTX_FL_NONE;
+	htx->sl_off = -1;
 }
 
 /* Returns an HTX message using the buffer <buf>. */
diff --git a/include/types/htx.h b/include/types/htx.h
index c709619..6d64c13 100644
--- a/include/types/htx.h
+++ b/include/types/htx.h
@@ -152,6 +152,9 @@
 	uint64_t extra;  /* known bytes amount remaining to receive */
 	uint32_t flags;  /* HTX_FL_* */
 
+	int32_t sl_off; /* Offset of the start-line of the HTTP message relatively to the beginning the
+			   data block. -1 if unset */
+
 	struct htx_blk blocks[0]; /* Blocks representing the HTTP message itself */
 };