diff --git a/include/common/htx.h b/include/common/htx.h
index 11caa59..9818a3f 100644
--- a/include/common/htx.h
+++ b/include/common/htx.h
@@ -230,6 +230,7 @@
 struct htx_blk *htx_defrag(struct htx *htx, struct htx_blk *blk);
 struct htx_blk *htx_add_blk(struct htx *htx, enum htx_blk_type type, uint32_t blksz);
 struct htx_blk *htx_remove_blk(struct htx *htx, struct htx_blk *blk);
+struct htx_ret htx_find_offset(struct htx *htx, uint32_t offset);
 void htx_truncate(struct htx *htx, uint32_t offset);
 struct htx_ret htx_drain(struct htx *htx, uint32_t max);