diff --git a/lib/HistoricSync.js b/lib/HistoricSync.js
index 41251b6..8fb8905 100644
--- a/lib/HistoricSync.js
+++ b/lib/HistoricSync.js
@@ -202,7 +202,7 @@ HistoricSync.prototype.updateStartBlock = function(next) {
         self.sync.bDb.fromHashWithInfo(tip, function(err, bi) {
           blockInfo = bi ? bi.info : {};
           if (oldtip)
-            self.sync.setBlockHeight(oldtip, -1, cb);
+            self.sync.bDb.setBlockNotMain(oldtip, cb);
           else
             return cb();
         });