diff --git a/include/proto/proto_http.h b/include/proto/proto_http.h
index 477b9b0..a8056af 100644
--- a/include/proto/proto_http.h
+++ b/include/proto/proto_http.h
@@ -114,6 +114,7 @@
 			  struct hdr_idx *idx, int occ,
 			  struct hdr_ctx *ctx, char **vptr, int *vlen);
 
+struct http_txn *http_alloc_txn(struct stream *s);
 void http_init_txn(struct stream *s);
 void http_end_txn(struct stream *s);
 void http_reset_txn(struct stream *s);