diff --git a/src/sync-core.h b/src/sync-core.h
index 998be7d..d8c9675 100644
--- a/src/sync-core.h
+++ b/src/sync-core.h
@@ -86,9 +86,13 @@
   void
   recover(const HashPtr &hash);
 
+// ------------------ only used in test -------------------------
   HashPtr
   root() { return m_rootHash; }
 
+  sqlite3_int64
+  seq(const Name &name);
+
 protected:
   void
   sendSyncInterest();